Updated 8 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.

1,762exploited flaws on CISA’s list

34added in the last 30 days

343new WordPress flaws this week

390,080entries in the database

40 results

Oct 14, 2026Description When NGINX Plus or NGINX Open Source is configured with ssl_session_cache shared:name:size without an explicit ssl_session_ticket_key file directCVE-2026-97629 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.3
Description When NGINX Plus or NGINX Open Source is configured with ssl_session_cache shared:name:size without an explicit ssl_session_ticket_key file directives to automatically rotate SSL session ticket keys, a remote unauthenticated attacker is able to forge client SSL sessions in a non-deterministic manner that is beyond the attacker's control. An attacker could leverage this vulnerability to bypass verification of client certificates. Impact This vulnerability can lead to the exposure of resources or functionality to unintended actors, possibly providing attackers with access to sensitive information. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Oct 14, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module.CVE-2026-97205 · Network & remote access · F5 · reported by f5sirt@f5.comCritical 9.2
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module. When asynchronous file I/O (AIO) is enabled in certain configurations, processing a Server Side Includes (SSI) page containing “include virtual” commands may trigger a Use-After-Free (UAF) in the NGINX worker process. This may cause memory corruption or a worker process crash. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system, corrupt its memory, or possibly trigger code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Oct 14, 2026Description NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module.CVE-2026-95101 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.9
Description NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with proxy_request_buffering on directive, an unauthenticated attacker may be able to inject data in the proxied request. Impact This vulnerability may allow remote attackers to inject data in the proxied request. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Oct 14, 2026A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and the root directive or access log format references the mCVE-2026-93479 · Network & remote access · F5 · reported by f5sirt@f5.comCritical 9.2
A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and the root directive or access log format references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Oct 14, 2026A vulnerability exists in NGINX Plus and NGINX Open Source when a location is configured that uses the alias directive together with rewrite and a set or returnCVE-2026-15176 · Network & remote access · F5 · reported by f5sirt@f5.comCritical 9.2
A vulnerability exists in NGINX Plus and NGINX Open Source when a location is configured that uses the alias directive together with rewrite and a set or return directive referencing the $request_filename variable. Alternatively, the same result could be achieved when the $request_filename variable is used in an access log format directive. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Sep 15, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module.CVE-2026-90439 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.9
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions <= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker's control. This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Sep 2, 2026Description: When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator coCVE-2026-66362 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.6
Description: When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the Authentication Filter Custom Resource Definition clientID or cookieName fields, or in the clientSecret field of a Secret referenced by an Authentication Filter, are rendered directly into NGINX configuration templates without sanitization or escaping. Impact: An authenticated attacker with permission to create or modify these resources may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure.
Product
NGINX Gateway Fabric
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Jul 15, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_slice_module module.CVE-2026-60005 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.8
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_slice_module module. When the slice directive and unnamed regex captures are configured or when a background cache update happens, unauthenticated attackers can send requests that may cause uninitialized memory access in the NGINX worker process, leading to limited disclosure of memory or a restart. Impact: This vulnerability may allow remote, unauthenticated attackers to have limited control to disclose memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: The ngx_http_slice_module module is not enabled by default; it's enabled with the --with-http_slice_module configuration parameter. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Jul 15, 2026When NGINX Plus is configured to use the Message Queuing Telemetry Transport (MQTT) filter module (ngx_stream_mqtt_filter_module), unauthenticated attackers canCVE-2026-60065 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.3
When NGINX Plus is configured to use the Message Queuing Telemetry Transport (MQTT) filter module (ngx_stream_mqtt_filter_module), unauthenticated attackers can send requests with conditions beyond the attacker's control to cause a heap buffer over-read in the NGINX worker process, leading to a restart. Impact: This vulnerability may allow remote unauthenticated attackers to have limited control to restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Jul 15, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssi_module module.CVE-2026-56434 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.3
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssi_module module. This vulnerability may exist when the Server-Side Includes (SSI), proxy_pass, and proxy_buffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to cause a use-after-free in the NGINX worker process. This issue may lead to limited modification of memory or a restart of the NGINX worker process. Impact: This vulnerability may allow remote attackers to have limited control to modify memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Jul 15, 2026A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture vCVE-2026-42533 · Network & remote access · F5 · reported by f5sirt@f5.comCritical 9.2
A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Jun 17, 2026When NGINX Plus or NGINX Open Source is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration geneCVE-2026-50107 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.6
When NGINX Plus or NGINX Open Source is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the NginxProxy Custom Resource Definition (CRD) access log format setting are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these CRDs may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure from the vulnerability trigger itself. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Gateway Fabric
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Jun 17, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module.CVE-2026-48142 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.3
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When content is served or proxied through a location block with both source_charset utf-8; and a charset directive (for example, charset koi8-r;) configured, remote, unauthenticated attackers can send requests (in conjunction with conditions beyond their control) to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Jun 17, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_proxy_v2_module and ngx_http_grpc_module modules.CVE-2026-42055 · Network & remote access · F5 · reported by f5sirt@f5.comCritical 9.2
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_proxy_v2_module and ngx_http_grpc_module modules. This vulnerability exists when the proxy_http_version to 2 or grpc_pass directives are used to proxy HTTP/2 traffic, the ignore_invalid_headers directive is set to off, and the large_client_header_buffers directive size is larger than 2 megabytes. A remote, unauthenticated attacker, along with conditions beyond their control, could send large headers while creating an upstream request. This may cause a heap-based buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com access.redhat.com
Jun 17, 2026When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGCVE-2026-11311 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.6
When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the NginxProxy Custom Resource Definition serverTokens field and the AuthenticationFilter Custom Resource Definition extraAuthArgs field are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these Custom Resource Definitions may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure from the vulnerability trigger itself. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Gateway Fabric
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
May 22, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module.CVE-2026-9256 · Network & remote access · F5 · reported by f5sirt@f5.comCritical 9.2
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when a rewrite directive uses a regex pattern with distinct, overlapping Perl-Compatible Regular Expression (PCRE) captures (for example, ^/((.*))$) and a replacement string that references multiple such captures (for example, $1$2) in a redirect or arguments context. An unauthenticated attacker along with conditions beyond their control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com openwall.com
May 13, 2026A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data.CVE-2026-42946 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.3
A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
May 13, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module.CVE-2026-42945 · Network & remote access · F5 · reported by f5sirt@f5.comCritical 9.2
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com depthfirst.com
May 13, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module.CVE-2026-42934 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.3
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When charset, source_charset, and charset_map and proxy_pass with disabled buffering ("off") directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' control to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
May 13, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl_verify_client directive is set to "on" or "optional," and tCVE-2026-40701 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.3
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive is set to "on" or the leaf parameters are configured with a resolver. With this configuration, an unauthenticated attacker can send requests along with conditions beyond its control that may cause a heap-use-after-free error in the NGINX worker process. This vulnerability may result in limited modification of data or the NGINX worker process restarting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
May 13, 2026When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass CVE-2026-40460 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.9
When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Mar 24, 2026NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module module, which might allow an attacker to trigger a buffer over-read or over-wriCVE-2026-32647 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.5
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module module, which might allow an attacker to trigger a buffer over-read or over-write to the NGINX worker memory resulting in its termination or possibly code execution, using a specially crafted MP4 file. This issue affects NGINX Open Source and NGINX Plus if it is built with the ngx_http_mp4_module module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted MP4 file with the ngx_http_mp4_module module. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com access.redhat.com
Mar 24, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_stream_ssl_module module due to the improper handling of revoked certificates when configured wCVE-2026-28755 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 5.3
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_stream_ssl_module module due to the improper handling of revoked certificates when configured with the ssl_verify_client on and ssl_ocsp on directives, allowing the TLS handshake to succeed even after an OCSP check identifies the certificate as revoked. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Mar 24, 2026NGINX Plus and NGINX Open Source have a vulnerability in the ngx_mail_smtp_module module due to the improper handling of CRLF sequences in DNS responses.CVE-2026-28753 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.3
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_mail_smtp_module module due to the improper handling of CRLF sequences in DNS responses. This allows an attacker-controlled DNS server to inject arbitrary headers into SMTP upstream requests, leading to potential request manipulation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
Mar 24, 2026NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_dav_module module that might allow an attacker to trigger a buffer overflow to the NGINX wCVE-2026-27654 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.8
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_dav_module module that might allow an attacker to trigger a buffer overflow to the NGINX worker process; this vulnerability may result in termination of the NGINX worker process or modification of source or destination file names outside the document root. This issue affects NGINX Open Source and NGINX Plus when the configuration file uses DAV module MOVE or COPY methods, prefix location (nonregular expression location configuration), and alias directives. The integrity impact is constrained because the NGINX worker process user has low privileges and does not have access to the entire system. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com access.redhat.com
Mar 24, 2026When the ngx_mail_auth_http_module module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate.CVE-2026-27651 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.7
When the ngx_mail_auth_http_module module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue may occur when (1) CRAM-MD5 or APOP authentication is enabled, and (2) the authentication server permits retry by returning the Auth-Wait response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com access.redhat.com
Feb 4, 2026A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers.CVE-2026-1642 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.2
A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a man-in-the-middle (MITM) position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response from an upstream proxied server. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com openwall.com
Aug 13, 2025NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authenticCVE-2025-53859 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.3
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com openwall.com
Aug 14, 2024NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module, which might allow an attacker to over-read NGINX worker memory resulting in itCVE-2024-7347 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 5.7
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module, which might allow an attacker to over-read NGINX worker memory resulting in its termination, using a specially crafted mp4 file. The issue only affects NGINX if it is built with the ngx_http_mp4_module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted mp4 file with the ngx_http_mp4_module. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com openwall.com
Aug 14, 2024When the NGINX Plus is configured to use the MQTT pre-read module, undisclosed requests can cause an increase in memory resource utilization.CVE-2024-39792 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 8.7
When the NGINX Plus is configured to use the MQTT pre-read module, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record my.f5.com
May 29, 2024When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate.CVE-2024-35200 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 5.3
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com lists.fedoraproject.org
May 29, 2024When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module and the network infrastructure supports a Maximum Transmission Unit (MTU) of 4096 or gCVE-2024-34161 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 5.3
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module and the network infrastructure supports a Maximum Transmission Unit (MTU) of 4096 or greater without fragmentation, undisclosed QUIC packets can cause NGINX worker processes to leak previously freed memory.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com lists.fedoraproject.org
May 29, 2024When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 encoder instructions can cause NGINX worker processes to terminateCVE-2024-32760 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 6.5
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 encoder instructions can cause NGINX worker processes to terminate or cause or other potential impact.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com lists.fedoraproject.org
May 29, 2024When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate or cause otCVE-2024-31079 · Network & remote access · F5 · reported by f5sirt@f5.comMedium 4.8
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate or cause other potential impact. This attack requires that a request be specifically timed during the connection draining process, which the attacker has no visibility and limited influence over.
Product
NGINX Open Source
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com lists.fedoraproject.org
Feb 14, 2024When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate.CVE-2024-24990 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 7.5
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate. Note: The HTTP/3 QUIC module is not enabled by default and is considered experimental. For more information, refer to Support for QUIC and HTTP/3 https://nginx.org/en/docs/quic.html . Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com my.f5.com
Feb 14, 2024When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate.CVE-2024-24989 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 7.5
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate. Note: The HTTP/3 QUIC module is not enabled by default and is considered experimental. For more information, refer to Support for QUIC and HTTP/3 https://nginx.org/en/docs/quic.html . NOTE: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com my.f5.com
Oct 19, 2022NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_hls_module that might allow a local attacker to corrupt NGINX worker meCVE-2022-41743 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 7
NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_hls_module that might allow a local attacker to corrupt NGINX worker memory, resulting in its crash or potential other impact using a specially crafted audio or video file. The issue affects only NGINX Plus when the hls directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_hls_module.
Product
NGINX Plus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record support.f5.com support.f5.com
Oct 19, 2022NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and RCVE-2022-41742 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 7.1
NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_mp4_module that might allow a local attacker to cause a worker process crash, or might result in worker process memory disclosure by using a specially crafted audio or video file. The issue affects only NGINX products that are built with the module ngx_http_mp4_module, when the mp4 directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_mp4_module.
Product
NGINX
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.debian.org lists.fedoraproject.org
Oct 19, 2022NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and RCVE-2022-41741 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 7
NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_mp4_module that might allow a local attacker to corrupt NGINX worker memory, resulting in its termination or potential other impact using a specially crafted audio or video file. The issue affects only NGINX products that are built with the ngx_http_mp4_module, when the mp4 directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_mp4_module.
Product
NGINX
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.debian.org lists.fedoraproject.org
Apr 23, 2020In versions of NGINX Controller prior to 3.2.0, communication between NGINX Controller and NGINX Plus instances skip TLS verification by default.CVE-2020-5864 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 7.4
In versions of NGINX Controller prior to 3.2.0, communication between NGINX Controller and NGINX Plus instances skip TLS verification by default.
Product
Nginx Controller
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.netapp.com support.f5.com

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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