F5 Nginx Open Source vulnerabilities

32 CVEs affecting F5 Nginx Open Source, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-97629, published 2026-10-14.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2026-27654, published 2026-03-24. High severity, CVSS 8.2. EPSS: 25.1% chance of exploitation in the next 30 days. 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…
CVE-2026-42055, published 2026-06-17. High severity, CVSS 8.1. EPSS: 6.5% chance of exploitation in the next 30 days. 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…
CVE-2026-42945, published 2026-05-13. High severity, CVSS 8.1. EPSS: 3.4% chance of exploitation in the next 30 days. 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…
CVE-2026-9256, published 2026-05-22. High severity, CVSS 8.1. EPSS: 2.7% chance of exploitation in the next 30 days. 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…
CVE-2026-42530, published 2026-06-17. High severity, CVSS 8.1. EPSS: 1.1% chance of exploitation in the next 30 days. NGINX Open Source has a vulnerability in the ngx_http_v3_module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions…
CVE-2024-24989, published 2024-02-14. High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days. 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…
CVE-2026-27784, published 2026-03-24. High severity, CVSS 7.8. EPSS: 1% chance of exploitation in the next 30 days. The 32-bit implementation of NGINX Open Source has a vulnerability in the ngx_http_mp4_module module, which might allow an attacker to over-read or over-write NGINX worker memory resulting in its…
CVE-2026-27651, published 2026-03-24. High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days. 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…
CVE-2024-35200, published 2024-05-29. Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days. 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.
CVE-2026-42946, published 2026-05-13. High severity, CVSS 7.4. EPSS: 0.9% chance of exploitation in the next 30 days. 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…

Latest

CVE-2026-97629, published 2026-10-14. Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days. 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…
CVE-2026-97205, published 2026-10-14. High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days. 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…
CVE-2026-95101, published 2026-10-14. Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days. 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…
CVE-2026-93479, published 2026-10-14. High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days. 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…
CVE-2026-15176, published 2026-10-14. High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days. 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…
CVE-2026-90439, published 2026-09-15. Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days. 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…
CVE-2026-60005, published 2026-07-15. High severity, CVSS 8.2. EPSS: 0.5% chance of exploitation in the next 30 days. 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…
CVE-2026-48142, published 2026-06-17. Medium severity, CVSS 4.8. EPSS: 0.4% chance of exploitation in the next 30 days. 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…