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HuttenlocherTechnologies
Updated 11 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,764exploited flaws on CISA’s list
35added in the last 30 days
456new WordPress flaws this week
390,714entries in the database

3,044 results · page 11 of 61

  • Jun 25, 2026In the Linux kernel, the following vulnerability has been resolved: net/sched: act_api: use RCU with deferred freeing for action lifecycle When NEWTFILTER andCVE-2026-53264 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.8

    In the Linux kernel, the following vulnerability has been resolved: net/sched: act_api: use RCU with deferred freeing for action lifecycle When NEWTFILTER and DELFILTER are run concurrently it is possible to create a race with an associated action. Let's illustrate with CPU0 running NEWTFILTER and CPU1 running DELFILTER: 0: mutex_lock() <-- holds the idr lock 0: rcu_read_lock() 0: p = idr_find(idr, index) <-- action p is valid (RCU protects IDR) 0: mutex_unlock() <-- releases the idr lock 1: refcount_dec_and_mutex_lock() <-- refcnt 1->0, mutex held 1: idr_remove(idr, index) <-- Action removed from IDR 1: mutex_unlock() <-- mutex released allowing us to delete the action 1: tcf_action_cleanup(p); kfree(p) <-- Kfrees p immediately, no deferral 0: refcount_inc_not_zero(&p->tcfa_refcnt) <-- ouch, UAF p points to freed memory This patch fixes the race condition between NEWTFILTER and DELFILTER by adding struct rcu_head to tc_action used in the deferral and introducing a call_rcu() in the delete path to defer the final kfree(). Note: this is a revert of commit d7fb60b9cafb ("net_sched: get rid of tcfa_rcu") but also modernization/simplification to directly use kfree_rcu().

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2026In the Linux kernel, the following vulnerability has been resolved: tcp: restrict SO_ATTACH_FILTER to priv users This patch restricts the use of SO_ATTACH_FILCVE-2026-53236 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: tcp: restrict SO_ATTACH_FILTER to priv users This patch restricts the use of SO_ATTACH_FILTER (cBPF) on TCP sockets to users with CAP_NET_ADMIN capability. This blocks potential side-channel attack where an unprivileged application attaches a filter to leak TCP sequence/acknowledgment numbers.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: revalidate bridge ports ebt_redirect_tg() dereferences br_port_get_rcu() returnCVE-2026-53220 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: netfilter: revalidate bridge ports ebt_redirect_tg() dereferences br_port_get_rcu() return without a NULL check, causing a kernel panic when the bridge port has been removed between the original hook invocation and an NFQUEUE reinject. A mere NULL check isn't sufficient, however. As sashiko review points out userspace can not only remove the port from the bridge, it could also place the device in a different virtual device, e.g. macvlan. If this happens, we must drop the packet, there is no way for us to reinject it into the bridge path. Switch to _upper API, we don't need the bridge port structure. Also, this fix keeps another bug intact: Both nfnetlink_log and nfnetlink_queue use CONFIG_BRIDGE_NETFILTER too aggressive, which prevents certain logging features when queueing in bridge family: NETFILTER_FAMILY_BRIDGE can be enabled while the old CONFIG_BRIDGE_NETFILTER cruft is off. Fixes tag is a common ancestor, this was always broken.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: avoid leaking percpu counter pointers The native and compat get-entriCVE-2026-53219 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a sanitized counter snapshot. On SMP kernels, entry->counters.pcnt contains the percpu allocation address used by x_tables rule counters. A caller can provide a userspace buffer that faults during the initial fixed-header copy after pcnt has been copied but before the later sanitized counter copy runs. The syscall then returns -EFAULT while leaving the raw percpu pointer in userspace. Copy only the fixed entry prefix before counters from the kernelized rule blob, then copy the sanitized counter snapshot into the counter field. Apply this ordering to the IPv4, IPv6, and ARP native and compat get-entries implementations so a fault cannot expose the internal percpu counter pointer.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_exthdr: fix register tracking for F_PRESENT flag nft_exthdr_init() passes uCVE-2026-53218 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_exthdr: fix register tracking for F_PRESENT flag nft_exthdr_init() passes user-controlled priv->len to nft_parse_register_store(), which marks that many bytes in the register bitmap as initialized. However, when NFT_EXTHDR_F_PRESENT is set, the eval paths write only 1 byte (nft_reg_store8) or 4 bytes (*dest = 0 on TCP/DCCP error path). When len > 4, registers beyond the first are never written, retaining uninitialized stack data from nft_regs. Bail out if userspace requests too much data when F_PRESENT is set.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_tunnel: fix use-after-free on object destroy nft_tunnel_obj_destroy() callsCVE-2026-53212 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.8

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_tunnel: fix use-after-free on object destroy nft_tunnel_obj_destroy() calls metadata_dst_free() which directly kfree()s the metadata_dst, ignoring the dst_entry refcount. Packets that took a reference via dst_hold() in nft_tunnel_obj_eval() and are still queued (e.g. in a netem qdisc) are left with a dangling pointer. When these packets are eventually dequeued, dst_release() operates on freed memory. Replace metadata_dst_free() with dst_release() so the metadata_dst is freed only after all references are dropped. The dst subsystem already handles metadata_dst cleanup in dst_destroy() when DST_METADATA is set.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_meta_bridge: fix stale stack leak via IIFHWADDR register NFT_META_BRI_IIFHWCVE-2026-53211 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_meta_bridge: fix stale stack leak via IIFHWADDR register NFT_META_BRI_IIFHWADDR declares its destination register with len = ETH_ALEN (6 bytes), which the register-init tracking rounds up to two 32-bit registers (8 bytes). nft_meta_bridge_get_eval() then does memcpy(dest, br_dev->dev_addr, ETH_ALEN), writing only 6 bytes and leaving the upper 2 bytes of the second register as uninitialised nft_do_chain() stack. A downstream load of that register span leaks those stale bytes to userspace. Zero the second register before the memcpy so the full declared span is written.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_fib: fix stale stack leak via the OIFNAME register For NFT_FIB_RESULT_OIFNACVE-2026-53134 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_fib: fix stale stack leak via the OIFNAME register For NFT_FIB_RESULT_OIFNAME the destination register is declared with len = IFNAMSIZ (four 32-bit registers), but on the lookup-fail, RTN_LOCAL and oif-mismatch paths nft_fib{4,6}_eval() only writes one register via "*dest = 0". The remaining three registers are left as whatever was on the stack in nft_do_chain()'s struct nft_regs, and a downstream expression that loads the register span can leak that uninitialised kernel stack to userspace. The NFTA_FIB_F_PRESENT existence check has the same shape: it is only meaningful for NFT_FIB_RESULT_OIF, yet it was accepted for any result type while the eval stores a single byte via nft_reg_store8(), leaving the rest of the declared span stale. Fix both: - replace the bare "*dest = 0" in the eval with nft_fib_store_result(), which strscpy_pad()s the whole IFNAMSIZ for OIFNAME (and is already used on the other early-return path), and - restrict NFTA_FIB_F_PRESENT to NFT_FIB_RESULT_OIF and declare its destination as a single u8, so the marked span matches the one byte the eval writes.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using eth_hdr() `ip6t_eui64`, `xt_mac`, the CVE-2026-53131 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Critical 9.4

    In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using eth_hdr() `ip6t_eui64`, `xt_mac`, the `bitmap:ip,mac`, `hash:ip,mac`, and `hash:mac` ipset types, and `nf_log_syslog` access `eth_hdr(skb)` after either assuming that the skb is associated with an Ethernet device or checking only that the `ETH_HLEN` bytes at `skb_mac_header(skb)` lie between `skb->head` and `skb->data`. Make these paths first verify that the skb is associated with an Ethernet device, that the MAC header was set, and that it spans at least a full Ethernet header before accessing `eth_hdr(skb)`.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026A NULL pointer dereference in the gf_filter_in_parent_chain function (/filter_core/filter_pid.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to causeCVE-2025-60473 · Other software · Gpac · reported by MITREMedium 5.5

    A NULL pointer dereference in the gf_filter_in_parent_chain function (/filter_core/filter_pid.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted file.

    Product
    Gpac
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026A use-after-free in the gf_filter_pid_get_packet function (/filter_core/filter_pid.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to cause a Denial oCVE-2025-60466 · Other software · Gpac · reported by MITREMedium 5

    A use-after-free in the gf_filter_pid_get_packet function (/filter_core/filter_pid.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted media file.

    Product
    Gpac
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026A use-after-free in the gf_filter_pid_inst_swap_delete_task function (/filter_core/filter_pid.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to causeCVE-2025-60467 · Other software · Gpac · reported by MITREHigh 7.5

    A use-after-free in the gf_filter_pid_inst_swap_delete_task function (/filter_core/filter_pid.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted media file.

    Product
    Gpac
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026A use-after-free in the gf_filter_pid_reconfigure_task_discard function (/filter_core/filter_pid.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to caCVE-2025-60471 · Other software · Gpac · reported by MITREMedium 5.5

    A use-after-free in the gf_filter_pid_reconfigure_task_discard function (/filter_core/filter_pid.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted media file.

    Product
    Gpac
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_fw: fix NULL dereference of "old" filters before change() Like pointed out CVE-2026-53080 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_fw: fix NULL dereference of "old" filters before change() Like pointed out by Sashiko [1], since commit ed76f5edccc9 ("net: sched: protect filter_chain list with filter_chain_lock mutex") TC filters are added to a shared block and published to datapath before their ->change() function is called. This is a problem for cls_fw: an invalid filter created with the "old" method can still classify some packets before it is destroyed by the validation logic added by Xiang. Therefore, insisting with repeated runs of the following script: # ip link add dev crash0 type dummy # ip link set dev crash0 up # mausezahn crash0 -c 100000 -P 10 \ > -A 4.3.2.1 -B 1.2.3.4 -t udp "dp=1234" -q & # sleep 1 # tc qdisc add dev crash0 egress_block 1 clsact # tc filter add block 1 protocol ip prio 1 matchall \ > action skbedit mark 65536 continue # tc filter add block 1 protocol ip prio 2 fw # ip link del dev crash0 can still make fw_classify() hit the WARN_ON() in [2]: WARNING: ./include/net/pkt_cls.h:88 at fw_classify+0x244/0x250 [cls_fw], CPU#18: mausezahn/1399 Modules linked in: cls_fw(E) act_skbedit(E) C

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes areCVE-2026-53002 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Critical 9.8

    In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check. Increase buffer size in mangle_content_len() while at it. BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270 Write of size 1 at addr [..] vsnprintf+0xea5/0x1270 sprintf+0xb1/0xe0 mangle_content_len+0x1ac/0x280 nf_nat_sdp_session+0x1cc/0x240 process_sdp+0x8f8/0xb80 process_invite_request+0x108/0x2b0 process_sip_msg+0x5da/0xf50 sip_help_tcp+0x45e/0x780 nf_confirm+0x34d/0x990 [..]

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: restrict several matches to inet family This is a partial revert of: CVE-2026-53001 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: restrict several matches to inet family This is a partial revert of: commit ab4f21e6fb1c ("netfilter: xtables: use NFPROTO_UNSPEC in more extensions") to allow ipv4 and ipv6 only. - xt_mac - xt_owner - xt_physdev These extensions are not used by ebtables in userspace. Moreover, xt_realm is only for ipv4, since dst->tclassid is ipv4 specific.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfree_rcu to release ops Florian Westphal says: "Historically this isCVE-2026-53000 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.8

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfree_rcu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nf_hook_ops that are used to register the callbacks. However, in v5.14 I added the ability to dump the active netfilter hooks from userspace. This code will peek back into the nf_hook_ops that are available at the tail of the pointer-array blob used by the datapath. The nat hooks are special, because they are called indirectly from the central nat dispatcher hook. They are currently invisible to the nfnl hook dump subsystem though. But once that changes the nat ops structures have to be deferred too." Update nf_nat_register_fn() to deal with partial exposition of the hooks from error path which can be also an issue for nfnetlink_hook.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix out-of-bounds read on option matching In nf_osf_match(), theCVE-2026-52999 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Critical 9.1

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix out-of-bounds read on option matching In nf_osf_match(), the nf_osf_hdr_ctx structure is initialized once and passed by reference to nf_osf_match_one() for each fingerprint checked. During TCP option parsing, nf_osf_match_one() advances the shared ctx->optp pointer. If a fingerprint perfectly matches, the function returns early without restoring ctx->optp to its initial state. If the user has configured NF_OSF_LOGLEVEL_ALL, the loop continues to the next fingerprint. However, because ctx->optp was not restored, the next call to nf_osf_match_one() starts parsing from the end of the options buffer. This causes subsequent matches to read garbage data and fail immediately, making it impossible to log more than one match or logging incorrect matches. Instead of using a shared ctx->optp pointer, pass the context as a constant pointer and use a local pointer (optp) for TCP option traversal. This makes nf_osf_match_one() strictly stateless from the caller's perspective, ensuring every fingerprint check starts at the correct option offset.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix potential NULL dereference in ttl check The nf_osf_ttl() funCVE-2026-52998 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.5

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix potential NULL dereference in ttl check The nf_osf_ttl() function accessed skb->dev to perform a local interface address lookup without verifying that the device pointer was valid. Additionally, the implementation utilized an in_dev_for_each_ifa_rcu loop to match the packet source address against local interface addresses. It assumed that packets from the same subnet should not see a decrement on the initial TTL. A packet might appear it is from the same subnet but it actually isn't especially in modern environments with containers and virtual switching. Remove the device dereference and interface loop. Replace the logic with a switch statement that evaluates the TTL according to the ttl_check.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase Publish new hooCVE-2026-52988 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.1

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase Publish new hooks in the list into the basechain/flowtable using splice_list_rcu() to ensure netlink dump list traversal via rcu is safe while concurrent ruleset update is going on.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_sip: don't use simple_strtoul Replace unsafe port parsing in epaddCVE-2026-52986 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Critical 9.8

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_sip: don't use simple_strtoul Replace unsafe port parsing in epaddr_len(), ct_sip_parse_header_uri(), and ct_sip_parse_request() with a new sip_parse_port() helper that validates each digit against the buffer limit, eliminating the use of simple_strtoul() which assumes NUL-terminated strings. The previous code dereferenced pointers without bounds checks after sip_parse_addr() and relied on simple_strtoul() on non-NUL-terminated skb data. A port that reaches the buffer limit without a trailing character is also rejected as malformed. Also get rid of all simple_strtoul() usage in conntrack, prefer a stricter version instead. There are intentional changes: - Bail out if number is > UINT_MAX and indicate a failure, same for too long sequences. While we do accept 05535 as port 5535, we will not accept e.g. 'sip:10.0.0.1:005060'. While its syntactically valid under RFC 3261, we should restrict this to not waste cycles when presented with malformed packets with 64k '0' characters. - Force base 10 in ct_sip_parse_numerical_param(). This is used to fetch 'expire=' and 'rports='; b

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: fix missing expect put in obj eval nft_ct_expect_obj_eval() allocates aCVE-2026-52970 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: fix missing expect put in obj eval nft_ct_expect_obj_eval() allocates an expectation and may call nf_ct_expect_related(), but never drops its local reference. Add nf_ct_expect_put(exp) before return to balance allocation.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native (ADSI) authenticatCVE-2026-57288 · Websites & servers · Jenkins Project · reported by jenkinsci-cert@googlegroups.comLow 3.7

    Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native (ADSI) authentication path, allowing unauthenticated attackers to inject LDAP wildcard characters to enumerate directory entries and to authenticate as a matching user whose password they know without knowing their exact user name.

    Product
    Jenkins Active Directory Plugin
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_log: validate MAC header was set before dumping it The fallback path of dumpCVE-2026-52942 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.1

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_log: validate MAC header was set before dumping it The fallback path of dump_mac_header() guards the MAC header access only with "skb->mac_header != skb->network_header", without checking skb_mac_header_was_set(). When the MAC header is unset, mac_header is 0xffff, so the test passes and skb_mac_header(skb) returns skb->head + 0xffff, ~64 KiB past the buffer; the loop then reads dev->hard_header_len bytes out of bounds into the kernel log. This is reachable via the netdev logger: nf_log_unknown_packet() calls dump_mac_header() unconditionally, and an skb sent through AF_PACKET with PACKET_QDISC_BYPASS reaches the egress hook with mac_header still unset (__dev_queue_xmit(), which would reset it, is bypassed). Add the skb_mac_header_was_set() check the ARPHRD_ETHER path already uses, and replace the open-coded MAC header length test with skb_mac_header_len(). Only skbs with an unset MAC header are affected; valid ones are dumped as before. BUG: KASAN: slab-out-of-bounds in dump_mac_header (net/netfilter/nf_log_syslog.c:831) Read of size 1 at addr ffff88800ea49d3f by task exploit/148 Call Trace:

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: fix OOB read in compat_mtw_from_user Luxiao Xu says: The function cCVE-2026-52927 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.8

    In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: fix OOB read in compat_mtw_from_user Luxiao Xu says: The function compat_mtw_from_user() converts ebtables extensions from 32-bit user structures to kernel native structures. However, it lacks proper validation of the user-supplied match_size/target_size. When certain extensions are processed, the kernel-side translation logic may perform memory accesses based on the extension's expected size. If the user provides a size smaller than what the extension requires, it results in an out-of-bounds read as reported by KASAN. This fix introduces a check to ensure match_size is at least as large as the extension's required compatsize. This covers matches, watchers, and targets, while maintaining compatibility with standard targets. AFAIU this is relevant for matches that need to go though match->compat_from_user() call. Those that use plain memcpy with the user-provided size are ok because the caller checks that size vs the start of the next rule entry offset (which itself is checked vs. total size copied from userspace). The ->compat_from_user() callbacks assume they can read compats

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: stop hash:* range iteration at end The following hash set variants: hasCVE-2026-52921 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67Medium 5.5

    In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: stop hash:* range iteration at end The following hash set variants: hash:ip,mark hash:ip,port hash:ip,port,ip hash:ip,port,net iterate IPv4 ranges with a 32-bit iterator. The iterator must stop once the last address in the requested range has been processed. Advancing it once more can move the traversal state past the end of the request, so a later retry may continue from an unintended position. Handle the iterator increment explicitly at the end of the loop and stop once the upper bound has been processed. This keeps the existing retry behaviour intact for valid ranges while preventing traversal from continuing past the original boundary.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_policy: fix strict mode inbound policy matching match_policy_in() walks sec_CVE-2026-52920 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 8.3

    In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_policy: fix strict mode inbound policy matching match_policy_in() walks sec_path entries from the last transform to the first one, but strict policy matching needs to consume info->pol[] in the same forward order as the rule layout. Derive the strict-match policy position from the number of transforms already consumed so that multi-element inbound rules are matched consistently.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_hbh: reject oversized option lists struct ip6t_opts stores at most IP6T_OPCVE-2026-52915 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.1

    In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_hbh: reject oversized option lists struct ip6t_opts stores at most IP6T_OPTS_OPTSNR option descriptors, but hbh_mt6_check() does not reject larger optsnr values supplied from userspace. Validate optsnr in the rule setup path so only match data that fits the fixed-size opts array can be installed. This follows the existing xtables pattern of rejecting invalid user-provided counts in checkentry() and keeps the packet matching path unchanged. `struct ip6t_opts` has a fixed `opts[IP6T_OPTS_OPTSNR]` array, where `IP6T_OPTS_OPTSNR` is 16, then off-by-one array access is possible: [ 137.924693][ T8692] UBSAN: array-index-out-of-bounds in ../net/ipv6/netfilter/ip6t_hbh.c:110:29 [ 137.926167][ T8692] index 16 is out of range for type '__u16 [16]'

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_queue: hold bridge skb->dev while queued br_pass_frame_up() rewrites skb->deCVE-2026-52912 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67High 7.8

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_queue: hold bridge skb->dev while queued br_pass_frame_up() rewrites skb->dev from the ingress port to the bridge master before queueing bridge LOCAL_IN packets. NFQUEUE only holds references on state.in/out and bridge physdevs, so a queued bridge packet can retain a freed bridge master in skb->dev until reinjection. When the verdict is reinjected later, br_netif_receive_skb() re-enters the receive path with skb->dev still pointing at the freed bridge master, triggering a use-after-free. Store skb->dev in the queue entry, hold a reference on it for the queue lifetime, and use the saved device when dropping queued packets during NETDEV_DOWN handling.

    Product
    Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2026Avalon23 Products Filter for WooCommerce: Stored Cross-Site ScriptingCVE-2026-8865 · WordPress plugins & themes · reported by WordfenceMedium 6.4

    The Avalon23 Products Filter for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'avalon23_qr' shortcode in all versions up to, and including, 1.1.6. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes (notably 'title' and 'fixed_link') which are concatenated directly into single-quoted HTML attributes by the AVALON23_HELPER::draw_html_item() helper without esc_attr() or any other encoding. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

    Product
    Avalon23 Products Filter for WooCommerce
    Affected
    up to 1.1.6
    What to do
    Affects up to 1.1.6. Update Avalon23 Products Filter for WooCommerce to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jun 23, 2026rtk filters and compresses command outputs before they reach your LLM context.CVE-2026-54555 · Other software · rtk-ai · reported by GitHubHigh 7.8

    rtk filters and compresses command outputs before they reach your LLM context. Prior to 0.42.2, the permission splitter did not conservatively split or reject several shell constructs that Bash treats as command execution boundaries or nested execution. As a result, a command beginning with an allowed prefix such as git could hide a second command behind one of these constructs. rtk rewrite returned exit code 0, causing the Claude hook to emit permissionDecision: "allow". The rewritten command still contained the hidden command, so it ran without the user confirmation or denial that the permission rules were intended to enforce. This vulnerability is fixed in 0.42.2.

    Product
    rtk
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 23, 2026rtk filters and compresses command outputs before they reach your LLM context.CVE-2026-45792 · Other software · rtk-ai · reported by GitHubMedium 6.9

    rtk filters and compresses command outputs before they reach your LLM context. Prior to 0.32.0, RTK (Rust Token Killer) improperly trusts project-local configuration files. RTK automatically loads .rtk/filters.toml from the working directory with highest priority and without user notification. An attacker can place a malicious filter file in a repository to apply regex-based modifications (e.g., strip_lines_matching) to shell command output before it is shown to the LLM, without any indication that the output has been modified. This allows attackers to selectively suppress or alter command output (including file contents, diffs, and security scan results) without detection, potentially concealing malicious code during AI-assisted development or review. This vulnerability is fixed in 0.32.0.

    Product
    rtk
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 23, 2026tarfile.extractall() with the 'data' or 'tar' filter could be bypassed by a crafted archive where a hardlink references a symlink stored at a deeper name thanCVE-2026-11940 · Other software · Python Software Foundation · reported by cna@python.orgHigh 7.8

    tarfile.extractall() with the 'data' or 'tar' filter could be bypassed by a crafted archive where a hardlink references a symlink stored at a deeper name than the hardlink itself.  The extraction fallback validated the symlink at it's archived location but recreated it at the hardlink's shallower path, letting a relative target the filter judged contained escape the destination directory.  This allowed a malicious tar archive to create a symlink pointing outside the destination, enabling out-of-destination file reads or writes. This was an incomplete fix of CVE-2025-4330.

    Product
    CPython
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 22, 2026Capgo before 12.128.12 fails to filter deleted app versions when joining channels during /updates resolution, allowing deleted bundles to remain selectable.CVE-2026-56314 · Other software · Capgo · reported by VulnCheckHigh 7.1

    Capgo before 12.128.12 fails to filter deleted app versions when joining channels during /updates resolution, allowing deleted bundles to remain selectable. Attackers can continue deploying deleted bundles to devices by exploiting the missing app_versions.deleted filter in channel version joins.

    Product
    Capgo
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 20, 2026Flowise before 3.0.8 contains a cross-site scripting (XSS) vulnerability caused by insufficient input filtering in chat messages and custom agent functions.CVE-2025-71331 · Other software · Flowise · reported by VulnCheckMedium 5.1

    Flowise before 3.0.8 contains a cross-site scripting (XSS) vulnerability caused by insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript by sending an iframe payload (e.g., <iframe src="javascript:alert(document.cookie)">) in a chat box, or by having a custom agent function return an XSS payload from an external website. The injected script executes in the victim's browser, enabling theft of cookies and session data.

    Product
    Flowise
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 17, 2026Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter FailureCVE-2026-7300 · Other software · RTI · reported by 3f572a00-62e2-4423-959a-7ea25eff1638High 8.8

    Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter Failure through Buffer Overflow. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.3, from 6.1.2 before 6.1.*.

    Product
    Connext Professional
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 17, 2026Unauthenticated SQL Injection in JetSmartFilters <= 3.8.1 versions.CVE-2026-48875 · WordPress plugins & themes · reported by PatchstackCritical 9.3

    Unauthenticated SQL Injection in JetSmartFilters <= 3.8.1 versions.

    Affected
    up to 3.8.1
    What to do
    Affects up to 3.8.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jun 17, 2026Unauthenticated PHP Object Injection in WooCommerce Product Filters < 2.0.6 versions.CVE-2026-40725 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in WooCommerce Product Filters < 2.0.6 versions.

    What to do
    Update the plugin to the newest version.
  • Jun 15, 2026Unauthenticated Cross Site Scripting (XSS) in Product Filter Widget for Elementor <= 1.0.6 versions.CVE-2026-45437 · WordPress plugins & themes · reported by PatchstackHigh 7.1

    Unauthenticated Cross Site Scripting (XSS) in Product Filter Widget for Elementor <= 1.0.6 versions.

    Affected
    up to 1.0.6
    What to do
    Affects up to 1.0.6. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jun 15, 2026An Out-of-Memory in the mp4_mux_cenc_insert_pssh function (filters/mux_isom.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplCVE-2025-55647 · Other software · Gpac · reported by MITREMedium 5.5

    An Out-of-Memory in the mp4_mux_cenc_insert_pssh function (filters/mux_isom.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

    Product
    Gpac
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 15, 2026A NULL pointer dereference in the TrackWriter handling component (filters/mux_isom.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) viCVE-2025-55643 · Other software · Gpac · reported by MITREMedium 5.5

    A NULL pointer dereference in the TrackWriter handling component (filters/mux_isom.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

    Product
    Gpac
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 15, 2026WP Go Maps: Does not perform any approval-state filtering on its public single-marker REST endpointCVE-2026-8386 · WordPress plugins & themes · reported by WPScanMedium 5.3

    The WP Go Maps WordPress plugin before 10.0.10 does not perform any approval-state filtering on its public single-marker REST endpoint, allowing unauthenticated users to retrieve marker records that an administrator has not yet approved for public display, including any PII placed in the address and description fields and the marker's geographic coordinates.

    Product
    WP Go Maps
    Fixed in
    10.0.10
    What to do
    Update WP Go Maps to 10.0.10 or newer.
  • Jun 15, 2026WP Go Maps: Does not properly enforce the marker approval filter on the admin-ajax fallback for its datatables routeCVE-2026-8385 · WordPress plugins & themes · reported by WPScanMedium 5.3

    The WP Go Maps WordPress plugin before 10.0.10 does not properly enforce the marker approval filter on the admin-ajax fallback for its datatables route, allowing unauthenticated visitors to retrieve marker records that the site owner has not approved for public display, including their title, category, address and description fields.

    Product
    WP Go Maps
    Fixed in
    10.0.10
    What to do
    Update WP Go Maps to 10.0.10 or newer.
  • Jun 12, 2026A vulnerability in Apache CXF's JwsJsonContainerRequestFilter can be exploited to cause CXF to process metadata that was not authenticated by the accepted signaCVE-2026-50634 · Websites & servers · Apache Software Foundation · reported by security@apache.orgMedium 6.5

    A vulnerability in Apache CXF's JwsJsonContainerRequestFilter can be exploited to cause CXF to process metadata that was not authenticated by the accepted signature. This can bypass the application's assumption that accepted `Content-Type` or protected HTTP-header metadata came from a verified signature entry, and may steer downstream JAX-RS entity parsing or signed-header consistency checks. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue.

    Product
    Apache CXF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 12, 2026A logic error in OAuthRequestFilter rejects legitimate requests originating from the bound IP address, while blindly allowing requests from any other IP addressCVE-2026-50628 · Websites & servers · Apache Software Foundation · reported by security@apache.orgCritical 9.8

    A logic error in OAuthRequestFilter rejects legitimate requests originating from the bound IP address, while blindly allowing requests from any other IP address. Enabling this security feature inadvertently creates an inverse security check. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

    Product
    Apache CXF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 11, 2026Product Filter by WBW: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')CVE-2026-39494 · WordPress plugins & themes · reported by PatchstackCritical 9.3

    Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in WBW Plugins Product Filter by WBW allows Blind SQL Injection. This issue affects Product Filter by WBW: from n/a through 3.1.2.

    Product
    Product Filter by WBW
    Affected
    up to 3.1.2
    What to do
    Affects up to 3.1.2. Update Product Filter by WBW to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jun 11, 2026Advanced AJAX Product Filters: Missing AuthorizationCVE-2022-45813 · WordPress plugins & themes · reported by PatchstackMedium 5.4

    Missing Authorization vulnerability in BeRocket Advanced AJAX Product Filters allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Advanced AJAX Product Filters: from n/a through 1.6.3.3.

    Product
    Advanced AJAX Product Filters
    Affected
    up to 1.6.3.3
    What to do
    Affects up to 1.6.3.3. Update Advanced AJAX Product Filters to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jun 10, 2026Ghidra before 12.1 contains a SQL injection vulnerability in BSim filter types that concatenate user-supplied values directly into SQL queries without escaping CVE-2026-52758 · Other software · nationalsecurityagency · reported by VulnCheckHigh 8.7

    Ghidra before 12.1 contains a SQL injection vulnerability in BSim filter types that concatenate user-supplied values directly into SQL queries without escaping or parameterization. Remote attackers can inject arbitrary SQL via the BSim network query protocol to read, modify, or delete data in the PostgreSQL database.

    Product
    ghidra
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 9, 2026Spring Data REST's Querydsl integration accepts arbitrary persistent property paths as request-parameter filter keys and does not consider Jackson customizationCVE-2026-41837 · Other software · Spring · reported by security@vmware.comMedium 5.3

    Spring Data REST's Querydsl integration accepts arbitrary persistent property paths as request-parameter filter keys and does not consider Jackson customizations before handing them to Querydsl. Affected versions: Spring Data REST 3.7.0 through 3.7.19; 4.3.0 through 4.3.16; 4.4.0 through 4.4.14; 4.5.0 through 4.5.11; 5.0.0 through 5.0.5.

    Product
    Spring Data REST
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 9, 2026Spring Data REST's JSON Patch (application/json-patch+json) implementation does not apply the write-access filter to intermediate path segments when resolving aCVE-2026-41728 · Other software · Spring · reported by security@vmware.comHigh 7.5

    Spring Data REST's JSON Patch (application/json-patch+json) implementation does not apply the write-access filter to intermediate path segments when resolving a multi-segment JSON Pointer. Affected versions: Spring Data REST 3.7.0 through 3.7.19; 4.3.0 through 4.3.16; 4.4.0 through 4.4.14; 4.5.0 through 4.5.11; 5.0.0 through 5.0.5.

    Product
    Spring Data REST
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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