F5 Nginx Open Source vulnerabilities

CVE-2024-32760 [MEDIUM] CWE-787 CVE-2024-32760: When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 encode 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.

CVE-2026-95101 [MEDIUM] CWE-172 CVE-2026-95101: Description NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. 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 con

CVE-2026-42926 [MEDIUM] CWE-172 CVE-2026-42926: When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxy_http_version to 2, and When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxy_http_version to 2, and also uses proxy_set_body, an attacker may be able to inject frame headers and payload bytes to the upstream peer. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVE-2026-42934 [MEDIUM] CWE-125 CVE-2026-42934: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When ch 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 NGI

CVE-2026-48142 [MEDIUM] CWE-125 CVE-2026-48142: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When co 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 con

CVE-2026-27784 [MEDIUM] CWE-190 CVE-2026-27784: The 32-bit implementation of NGINX Open Source has a vulnerability in the ngx_http_mp4_module module 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 termination, using a specially crafted MP4 file. The issue only affects 32-bit NGINX Open Source if it is built with the ngx_http_mp4_module module and the

CVE-2026-28755 [MEDIUM] CWE-863 CVE-2026-28755: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_stream_ssl_module module due to the 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

CVE-2026-40701 [MEDIUM] CWE-416 CVE-2026-40701: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl 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

CVE-2024-34161 [MEDIUM] CWE-416 CVE-2024-34161: When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module and the network infrastruc 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.

CVE-2025-23419 [MEDIUM] CWE-863 CVE-2025-23419: When multiple server blocks are configured to share the same IP address and port, an attacker can us When multiple server blocks are configured to share the same IP address and port, an attacker can use session resumption to bypass client certificate authentication requirements on these servers. This vulnerability arises when TLS Session Tickets https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_session_ticket_key are used and/or the SSL s

CVE-2024-35200 [MEDIUM] CWE-476 CVE-2024-35200: When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 reques 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-2024-31079 [MEDIUM] CWE-121 CVE-2024-31079: When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 reques 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.

CVE-2025-53859 [LOW] CWE-125 CVE-2025-53859: NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow a 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 re

CVE-2024-7347 [MEDIUM] CWE-126 CVE-2024-7347: NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module, which might allow 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,

CVE-2026-28753 [LOW] CWE-93 CVE-2026-28753: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_mail_smtp_module module due to the 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 Techni