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.
399,200 results · page 434 of 7984
Oct 9, 2026UnitechPay: Does not verify the authenticity of the payment notifications it receivesCVE-2026-87841 · WordPress plugins & themes · reported by WPScanMedium 5.3
The UnitechPay WordPress plugin through 1.0.6.3 does not verify the authenticity of the payment notifications it receives, allowing unauthenticated attackers to mark orders placed through it as paid without any payment being made, as well as to force other orders into a failed state.
- Product
- UnitechPay
- Affected
- up to 1.0.6.3
- What to do
- Affects up to 1.0.6.3. Update UnitechPay to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Oct 9, 2026SKU Error Fixer for WooCommerce: Does not perform any capability or nonce checks on two of its AJAX actionsCVE-2026-86850 · WordPress plugins & themes · reported by WPScanMedium 6.5
The SKU Error Fixer for WooCommerce WordPress plugin through 1.0 does not perform any capability or nonce checks on two of its AJAX actions, which are also available to unauthenticated users, allowing them to permanently delete product variations it classifies as obsolete, and to disclose those variations' details, with no recoverable copy left behind.
- Product
- SKU Error Fixer for WooCommerce
- Affected
- up to 1.0
- What to do
- Affects up to 1.0. Update SKU Error Fixer for WooCommerce to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Oct 9, 2026Ocean Pro Demos and Ocean eComm Treasure Box: Stored Cross-Site ScriptingCVE-2026-81929 · WordPress plugins & themes · reported by WordfenceHigh 7.2
The Ocean Pro Demos and Ocean eComm Treasure Box plugins for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter in all versions up to, and including, 1.5.4, and 1.8.0, respectively, due to insufficient authorization, input sanitization, and output escaping in the Popup Builder's save_popup_content AJAX action. This makes it possible for unauthenticated attackers to inject arbitrary web scripts into a published Gutenberg popup that will execute whenever a user accesses a page on which the popup is configured to display. A valid premium license, the Popup Builder module, and at least one published Gutenberg popup configured for display are required.
- Product
- Ocean Pro Demos and Ocean eComm Treasure Box
- Affected
- up to 1.5.4
- What to do
- Affects up to 1.5.4. Update Ocean Pro Demos and Ocean eComm Treasure Box to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recorddocs.oceanwp.orgdocs.oceanwp.org
Oct 9, 2026Code Snippets: Does not sanitise and escape a user-supplied parameter before using it in a SQL query in some of its snippet-migration import endpointsCVE-2026-106097 · WordPress plugins & themes · reported by WPScanMedium 6.8
The Code Snippets WordPress plugin before 3.10.0 does not sanitise and escape a user-supplied parameter before using it in a SQL query in some of its snippet-migration import endpoints, which are accessible to any user holding site-administration capabilities; on a WordPress Multisite network those belong to subsite Administrators, allowing a subsite Administrator who is not a network Super Admin to perform UNION-based SQL injection against shared network tables and disclose network-wide data such as other users' password hashes.
- Product
- Code Snippets
- Fixed in
- 3.10.0
- What to do
- Update Code Snippets to 3.10.0 or newer.
Oct 9, 2026Code Snippets: Does not perform a capability check on one of its snippet-management actions and derives the network scope of the targeted snippet from the request instead of from the stored recordCVE-2026-106095 · WordPress plugins & themes · reported by WPScanLow 3.3
The Code Snippets WordPress plugin before 3.10.0 does not perform a capability check on one of its snippet-management actions and derives the network scope of the targeted snippet from the request instead of from the stored record, allowing an administrator of a single subsite on a multisite network to activate, deactivate and reprioritise network-scoped snippets that run across every site in the network.
- Product
- Code Snippets
- Fixed in
- 3.10.0
- What to do
- Update Code Snippets to 3.10.0 or newer.
Oct 9, 2026Incorrect Authorization vulnerability in ash-project ash allows an actor to infer data in related records they cannot read via Ash.count/2, Ash.exists/2 and AshCVE-2026-101028 · Other software · ash-project · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbMedium 6
Incorrect Authorization vulnerability in ash-project ash allows an actor to infer data in related records they cannot read via Ash.count/2, Ash.exists/2 and Ash.aggregate/3. Ash.Actions.Aggregate.run/4 (lib/ash/actions/aggregate.ex) applied only the root resource's read policy before running the aggregate query. The read path also applies each related resource's read policy to filter and sort references that cross a relationship, directly (for example comments.body) or through an aggregate over one, but the aggregate path skipped that step. A caller whose filter or sort reaches these functions, for example through Ash.Query.filter_input/2, an ash_lua script, or an AshAi tool offering count or exists results, can test conditions against related rows hidden from them and recover their existence and attribute values one query at a time. Ash.read/2 and its page counts are not affected. This issue affects ash: from 2.6.0 before 3.34.6.
- Product
- ash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.erlef.orggithub.com
Oct 9, 2026AWP Classifieds: Does not validate the type of files extracted from an uploaded ZIP archive during its listing-import featureCVE-2025-15700 · WordPress plugins & themes · reported by WPScanHigh 8.8
The AWP Classifieds WordPress plugin before 4.4.9 does not validate the type of files extracted from an uploaded ZIP archive during its listing-import feature, allowing users with the AWP Classifieds WordPress plugin before 4.4.9's management capability to upload arbitrary PHP files to a publicly accessible, network-shared directory and achieve remote code execution.
- Product
- AWP Classifieds
- Fixed in
- 4.4.9
- What to do
- Update AWP Classifieds to 4.4.9 or newer.
Oct 9, 2026An unauthenticated user with network access to the Ops Manager web port can repeatedly request monitoring endpoints that perform costly work without rate limitiCVE-2026-87110 · Other software · MongoDB · reported by cna@mongodb.comMedium 6.9
An unauthenticated user with network access to the Ops Manager web port can repeatedly request monitoring endpoints that perform costly work without rate limiting. This can temporarily slow other traffic served by the same process while requests continue.
- Product
- Ops Manager
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026An authenticated Ops Manager organization member can retrieve another member's pending authenticator enrollment seed through user-listing endpoints while that mCVE-2026-87109 · Other software · MongoDB · reported by cna@mongodb.comMedium 6
An authenticated Ops Manager organization member can retrieve another member's pending authenticator enrollment seed through user-listing endpoints while that member's enrollment is unconfirmed. This results in disclosure of secret authentication material to another member of the same organization or project.
- Product
- Ops Manager
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026An authenticated Ops Manager user with a read-only project role can retrieve a daily host monitoring record associated with a different project when they possesCVE-2026-87108 · Other software · MongoDB · reported by cna@mongodb.comLow 2.3
An authenticated Ops Manager user with a read-only project role can retrieve a daily host monitoring record associated with a different project when they possess the required record identifier. Insufficient ownership validation can expose deployment metadata, including host and configuration details.
- Product
- Ops Manager
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026Backdrop CMS 1.34 before 1.34.5 and 1.35 before 1.35.1 doesn't sufficiently protect configuration exports when delivering a compressed archive.CVE-2026-107914 · Other software · backdropcms · reported by MITREHigh 7.8
Backdrop CMS 1.34 before 1.34.5 and 1.35 before 1.35.1 doesn't sufficiently protect configuration exports when delivering a compressed archive. This vulnerability is mitigated by the fact that an export must have been previously requested by someone with the "Synchronize, import, and export configuration" permission. NOTE: CVE-2026-107914 refers to the vulnerability in which config.admin.inc does not ensure that a file_unmanaged_delete operation occurs. Therefore, many archives could persist: config.tar.gz, config_0.tar.gz, config_1.tar.gz, etc. There is a separate config.module issue that could allow remote access by an anonymous user, but only for the one filename config.tar.gz.
- Product
- Backdrop
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbackdropcms.orggithub.com
Oct 9, 2026A type confusion vulnerability in the _read_flags function (src/commands/cmd_dispatcher.c) in FalkorDB before 4.20.0 allows a remote authenticated attacker who CVE-2026-107911 · Other software · FalkorDB · reported by 33c584b5-0579-4c06-b2a0-8d8329fcab9cHigh 7.7
A type confusion vulnerability in the _read_flags function (src/commands/cmd_dispatcher.c) in FalkorDB before 4.20.0 allows a remote authenticated attacker who can run GRAPH.QUERY to cause a denial of service and possibly disclose or corrupt memory. The function accepts a --bolt argument from any client and casts the following command argument, a Redis string object, to a Bolt client structure without checking its origin; the result-set code then dereferences pointers read from that object. The argument is parsed even when the Bolt endpoint is disabled, so default configurations are affected.
- Product
- FalkorDB
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026An improper authentication vulnerability in the is_authenticated function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attackCVE-2026-107910 · Other software · FalkorDB · reported by 33c584b5-0579-4c06-b2a0-8d8329fcab9cCritical 9.2
An improper authentication vulnerability in the is_authenticated function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to execute graph queries without credentials through the Bolt endpoint. The function decides whether a password is required by issuing an empty AUTH command to Redis and treats only a WRONGPASS error as meaning that a password is required; any other error, such as LOADING while a dataset is being loaded, MASTERDOWN during replication failover, or OOM under memory pressure, causes the client to be treated as authenticated. Only deployments that enable the Bolt endpoint (BOLT_PORT, disabled by default) are affected.
- Product
- FalkorDB
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026A heap-based out-of-bounds write in the ws_read_frame function (src/bolt/ws.c) and the buffer_apply_mask function (src/bolt/buffer.c) in FalkorDB before 4.20.0 CVE-2026-107909 · Other software · FalkorDB · reported by 33c584b5-0579-4c06-b2a0-8d8329fcab9cHigh 8.8
A heap-based out-of-bounds write in the ws_read_frame function (src/bolt/ws.c) and the buffer_apply_mask function (src/bolt/buffer.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to cause a denial of service and possibly corrupt heap memory by sending a WebSocket frame with a 64-bit extended payload length to the Bolt port. The payload length is not bounded, and the only bounds check in buffer_apply_mask is an ASSERT(), which is compiled out in release builds, so the function XORs memory beyond the end of the receive buffer with the attacker-supplied mask key. Only deployments that enable the Bolt endpoint (BOLT_PORT, disabled by default) are affected.
- Product
- FalkorDB
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026A heap-based out-of-bounds write in the BoltReadHandler function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to cauCVE-2026-107908 · Other software · FalkorDB · reported by 33c584b5-0579-4c06-b2a0-8d8329fcab9cCritical 9.3
A heap-based out-of-bounds write in the BoltReadHandler function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to cause a denial of service and possibly execute arbitrary code by sending a Bolt RESET message with an attacker-chosen chunk size to the Bolt port. The handler checks the size only with ASSERT(), which is compiled out in release builds, then computes a destination pointer from the wire-supplied 16-bit size and moves buffered data up to about 64 KiB backwards past the start of the read buffer. Only deployments that enable the Bolt endpoint (BOLT_PORT, disabled by default) are affected.
- Product
- FalkorDB
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026A stack-based buffer overflow in the _RdbLoadEntity function of the RDB graph decoders (src/serializers/decoders/*/decode_graph_entities.c) in FalkorDB before 4CVE-2026-7827 · Other software · FalkorDB · reported by 33c584b5-0579-4c06-b2a0-8d8329fcab9cCritical 9.2
A stack-based buffer overflow in the _RdbLoadEntity function of the RDB graph decoders (src/serializers/decoders/*/decode_graph_entities.c) in FalkorDB before 4.18.4 allows a remote attacker who can issue Redis replication commands (for example, against an instance with no password configured) to cause a denial of service and possibly execute arbitrary code by supplying a crafted RDB stream with an attacker-controlled entity property count. The count sizes two variable-length arrays on the thread stack with no upper bound, and the decoder then fills them with attacker-supplied values.
- Product
- FalkorDB
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026A heap-based out-of-bounds read in the BufferSerializerIOv2_ReadBuffer function (src/serializers/serializer_io.c) in FalkorDB before 4.18.4 allows a remote attaCVE-2026-7826 · Other software · FalkorDB · reported by 33c584b5-0579-4c06-b2a0-8d8329fcab9cHigh 8.8
A heap-based out-of-bounds read in the BufferSerializerIOv2_ReadBuffer function (src/serializers/serializer_io.c) in FalkorDB before 4.18.4 allows a remote attacker who can issue Redis replication commands (for example, against an instance with no password configured) to cause a denial of service or disclose heap memory by supplying a crafted RDB stream whose sub-buffer length field exceeds the remaining buffer size. The only bounds check is an ASSERT(), which is compiled out in release builds, so memcpy() reads past the end of the heap allocation.
- Product
- FalkorDB
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026A double free and use-after-free vulnerability in the RdbLoadDeletedNodes function of the RDB graph decoders (src/serializers/decoders/*/decode_graph_entities.cCVE-2026-5759 · Other software · FalkorDB · reported by 33c584b5-0579-4c06-b2a0-8d8329fcab9cCritical 9.3
A double free and use-after-free vulnerability in the RdbLoadDeletedNodes function of the RDB graph decoders (src/serializers/decoders/*/decode_graph_entities.c) in FalkorDB before 4.18.1 allows a remote attacker who can issue Redis replication commands (for example, against an instance with no password configured) to cause a denial of service or execute arbitrary code in the redis-server process by supplying a crafted RDB stream whose deleted-nodes buffer length is not a multiple of sizeof(NodeID). The length check relies on ASSERT(), which is compiled out in release builds, so the function continues after freeing the buffer, reading it and freeing it a second time.
- Product
- FalkorDB
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026OpenPrinting CUPS before 2.4.20 contains a NULL pointer dereference caused by repeated IPP group tags in job-creation requests.CVE-2026-107890 · Other software · OpenPrinting · reported by MITRELow 3.3
OpenPrinting CUPS before 2.4.20 contains a NULL pointer dereference caused by repeated IPP group tags in job-creation requests. IPP parsing creates unnamed separator attributes with IPP_TAG_ZERO, but add_job() converts these separators to IPP_TAG_JOB. During job startup, get_options()/ipp_length() subsequently calls strlen() on a NULL attribute name, terminating cupsd and disrupting all queues. A single crafted Print-Job request can trigger the crash when the client can reach the scheduler and submit jobs to an accepting, enabled queue supporting the submitted document format. Anonymous submission is possible when permitted by listener and access-control configuration.
- Product
- CUPS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026A flaw was found in the login theme rendering component of Keycloak.CVE-2026-107889 · Other software · Red Hat · reported by Red HatMedium 5.5
A flaw was found in the login theme rendering component of Keycloak. The issue occurs because the security filter responsible for cleaning user input can be bypassed, allowing a realm administrator to store malicious scripts in display fields. This could result in unauthorized JavaScript execution in the browsers of users visiting the login page, potentially leading to data exposure or session interference.
- Product
- Red Hat build of Keycloak 26.6
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.comaccess.redhat.com
Oct 9, 2026OpenPrinting CUPS before 2.4.20 contains a NULL pointer dereference in cupsdCheckJobs() when a job marked job-held-on-create refers to a temporary printer that CVE-2026-107888 · Other software · OpenPrinting · reported by MITREMedium 5.1
OpenPrinting CUPS before 2.4.20 contains a NULL pointer dereference in cupsdCheckJobs() when a job marked job-held-on-create refers to a temporary printer that has been automatically deleted. Temporary-printer cleanup can remove the destination without canceling its held jobs, and the scheduler dereferences the NULL result of cupsdFindDest() while checking holding_new_jobs. This terminates cupsd and interrupts all queues managed by that process. In some plausible scenarios, an unprivileged submission can trigger this.
- Product
- CUPS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management.CVE-2026-107886 · Other software · OpenPrinting · reported by MITRELow 2.3
OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management. When CUPS-Add-Modify-Class replaces an existing class member list, add_class() frees pclass->printers without clearing the pointer. If subsequent validation fails, the class retains the dangling pointer; CUPS-Delete-Class subsequently frees the same allocation in cupsdDeletePrinter(). A client authorized to modify and delete classes can cause scheduler-wide denial of service. The default policy requires @SYSTEM privileges.
- Product
- CUPS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2026OpenPrinting CUPS through 2.4.20 contains a resource-exhaustion vulnerability in the submission-timeout handling of cupsdCheckJobs().CVE-2026-107885 · Other software · OpenPrinting · reported by MITRELow 3.3
OpenPrinting CUPS through 2.4.20 contains a resource-exhaustion vulnerability in the submission-timeout handling of cupsdCheckJobs(). The scheduler suppresses timeout processing for all pending jobs whenever any client connection has an in-flight Send-Document operation, without matching that connection to the job being examined. A client allowed to reach the IPP service can hold an incomplete HTTP request containing parsed Send-Document headers before operation authorization, preventing unrelated incomplete jobs from expiring. Where Create-Job submission is allowed, incomplete jobs can accumulate until MaxJobs is exhausted and further legitimate print submissions are rejected. The suppression ends when the held connection closes.
- Product
- CUPS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently.CVE-2026-97032 · Other software · Go standard library · reported by security@golang.orgHigh 7.5
HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends. A malicious client can repeatedly send a request while changing the header table size to crash the server.
- Product
- net/http
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhausCVE-2026-97031 · Other software · Go standard library · reported by security@golang.orgHigh 7.5
Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.
- Product
- crypto/tls
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026A trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would not be correctly escaped.CVE-2026-97030 · Other software · Go standard library · reported by security@golang.orgMedium 6.1
A trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would not be correctly escaped. We now ensure that valid keyword uses are escaped and non-keyword uses are not escaped.
- Product
- html/template
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.CVE-2026-96207 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 10
Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
- Product
- Microsoft Partner Center
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Authorization bypass through user-controlled key in Microsoft Bookings allows an unauthorized attacker to elevate privileges over a network.CVE-2026-94510 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.9
Authorization bypass through user-controlled key in Microsoft Bookings allows an unauthorized attacker to elevate privileges over a network.
- Product
- Microsoft Bookings
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026When a JavaScript template literal contains consecutive expressions, the context tracking state was not properly reset upon entering a new expression.CVE-2026-94448 · Other software · Go standard library · reported by security@golang.orgMedium 6.1
When a JavaScript template literal contains consecutive expressions, the context tracking state was not properly reset upon entering a new expression. We now ensure that template-literal expression entries correctly reset context variables so all subsequent regular expression literals are accurately recognized and escaped.
- Product
- html/template
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/toolchain go.sum entry and operates a malicious GOMODPROXY the useCVE-2026-94447 · Other software · Go toolchain · reported by security@golang.orgHigh 7.8
Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/toolchain go.sum entry and operates a malicious GOMODPROXY the user chooses to use can bypass the intended checksum. We now ensure that golang.org/toolchain always goes to the network for the canonical checksum.
- Product
- cmd/go
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/fips140 and operates a malicious GOMODPROXY the user chooses to coCVE-2026-94444 · Other software · Go toolchain · reported by security@golang.orgHigh 7.8
Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/fips140 and operates a malicious GOMODPROXY the user chooses to connect to can serve an arbitrary module in its place. We now unpack the trusted ziphash for the bundled golang.org/fips140 module and construct its entry in the GOMODCACHE such that it can be verified by the toolchain.
- Product
- cmd/go
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400CVE-2026-94440 · Other software · Go standard library · reported by security@golang.orgHigh 7.5
Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes.
- Product
- net/textproto
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to rCVE-2026-94439 · Other software · Go standard library · reported by security@golang.orgHigh 7.5
When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server should not treat the connection as continuing to contain HTTP. The impact of this misbehavior is mostly limited to potential request smuggling, where an intermediate proxy considers the data on the connection to be tunneled and the server considers it to be HTTP.
- Product
- net/http
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.CVE-2026-88131 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft Dataverse
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.CVE-2026-83947 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.7
Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.
- Product
- Azure Event Grid System
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Exposure of sensitive information to an unauthorized actor in Azure API Center allows an unauthorized attacker to disclose information over a network.CVE-2026-83943 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.7
Exposure of sensitive information to an unauthorized actor in Azure API Center allows an unauthorized attacker to disclose information over a network.
- Product
- Azure API Center
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frCVE-2026-78669 · Other software · Go standard library · reported by security@golang.orgHigh 7.5
A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.
- Product
- net/http
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.CVE-2026-78667 · Other software · Go standard library · reported by security@golang.orgHigh 7.5
When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.
- Product
- net/http
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread pCVE-2026-78663 · Other software · Go standard library · reported by security@golang.orgCritical 9.1
The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a request handler reads the buffered data. A malicious client can exploit this to bypass the configured connection-level flow control limit (MaxReceiveBufferPerConnection). Total buffered data is still limited by the concurrent stream limit and stream-level flow control.
- Product
- net/http
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing.CVE-2026-78660 · Other software · Go standard library · reported by security@golang.orgHigh 7.5
Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such headers to an HTTP/1 client when acting as a reverse proxy. If the HTTP/1 client also does not behave strictly enough, this can result in response smuggling.
- Product
- net/http
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler.CVE-2026-78659 · Other software · Go standard library · reported by security@golang.orgHigh 7.5
When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler. Because Request.Trailer is a map, each entry incurs memory overhead. For HTTP/2 servers, a malicious client can exploit this by sending a "Trailer" header that declares a large number of fields, causing the server to allocate a disproportionate amount of memory while bypassing Server.MaxHeaderValueCount and Server.MaxHeaderBytes limits. This exploit is not applicable for HTTP/1 servers, which do not support multiplexing a large number of requests over one TCP connection, and whose Server.MaxHeaderBytes are calculated differently.
- Product
- net/http
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Missing authentication for critical function in Azure App Service allows an unauthorized attacker to execute code over a network.CVE-2026-77900 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Missing authentication for critical function in Azure App Service allows an unauthorized attacker to execute code over a network.
- Product
- Azure App Service for Linux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026Missing authorization in Azure SRE Agent allows an authorized attacker to elevate privileges over a network.CVE-2026-69435 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.6
Missing authorization in Azure SRE Agent allows an authorized attacker to elevate privileges over a network.
- Product
- Azure SRE Agent
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026When http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing after the requeCVE-2026-56866 · Other software · Go standard library · reported by security@golang.orgHigh 7.5
When http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing after the request headers. If the server rejects the CONNECT request with a non-2xx keep-alive response, Transport returns the connection to the idle pool. Because CONNECT requests do not have a request body, the server may interpret the trailing body bytes as a subsequent pipelined HTTP/1.1 request on the connection, leaving the pooled connection desynchronized and causing the next caller that reuses it to read the response to the injected request. In reverse proxies (including httputil.ReverseProxy) that forward CONNECT requests through a shared Transport, this can lead to cross-user response poisoning.
- Product
- net/http
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026On Windows, when the target of Root.Mkdir or Root.MkdirAll is a junction pointing to an empty location, the operation can create a directory at the junction tarCVE-2026-56857 · Other software · Go standard library · reported by security@golang.orgCritical 9.8
On Windows, when the target of Root.Mkdir or Root.MkdirAll is a junction pointing to an empty location, the operation can create a directory at the junction target even when that target is located outside the root. This only applies to operations where the last path component is a junction (path/to/junction, but not path/junction/target).
- Product
- os
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026SumatraPDF is a multi-format reader for Windows.CVE-2026-107802 · Other software · sumatrapdfreader · reported by GitHubHigh 7.1
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, src/SelectionTranslate.cpp embeds selected or pasted translation text in quoted Windows command lines using incomplete quote-only escaping. The affected BuildGrokTranslateCmdLineTemp(), BuildClaudeTranslateCmdLineTemp(), and BuildCodexTranslateCmdLineTemp() functions can allow attacker-controlled text to inject model, working-directory, approval, or sandbox-bypass flags when the corresponding agentic CLI backend is installed and used. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.
- Product
- sumatrapdf
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026SumatraPDF is a multi-format reader for Windows.CVE-2026-107738 · Other software · sumatrapdfreader · reported by GitHubMedium 6.8
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, ChmFile::GetCharZ() narrows file-controlled unsigned string offsets from /#WINDOWS and /#IVB to signed integers without a lower-bound check. An offset that becomes negative can make the function read before the /#STRINGS buffer, causing deterministic application termination. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.
- Product
- sumatrapdf
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026SumatraPDF is a multi-format reader for Windows.CVE-2026-107737 · Other software · sumatrapdfreader · reported by GitHubMedium 5.7
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, and in pre-release 3.7.0.20369 when WebView2 is absent or cannot initialize, ParseProtoUrl() accepts the signed host component of an its:// URL and FindHtmlWindowById() uses it directly as an index into gHtmlWindows. Opening a crafted CHM through the IE fallback backend with a negative or otherwise out-of-range window identifier can cause an out-of-bounds pointer read followed by an invalid object callback dereference and process termination. No fixed version is available as of this review.
- Product
- sumatrapdf
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026SumatraPDF is a multi-format reader for Windows.CVE-2026-107736 · Other software · sumatrapdfreader · reported by GitHubMedium 6.8
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, MaybeFlipBitmap() asks GDI+ to read the attacker-controlled PropertyTagOrientation size through GetPropertyItem() while supplying only a fixed 64-byte buf on the stack. Opening a crafted TIFF with enough EXIF Orientation values can cause attacker-selected bytes to overwrite stack control data, while tested builds terminate through the stack cookie check. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.
- Product
- sumatrapdf
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2026SumatraPDF is a multi-format reader for Windows.CVE-2026-107735 · Other software · sumatrapdfreader · reported by GitHubMedium 5.4
SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, InitializePolicies() starts the sumatrapdfrestrict.ini path with gPolicyRestrictions set to Perm::All and only ORs permission bits, so the INI file never revokes permissions. Deploying SumatraPDF with this INI file, including a malformed file or zero-valued permission settings, can silently bypass configured disk, network, printing, registry, clipboard, preference, and fullscreen restrictions. The -restrict command-line path works correctly and is not affected. No fixed version is available as of this review.
- Product
- sumatrapdf
- 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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