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Product · F5

NGINX Open Source

35 known vulnerabilities.

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  • High 8.1
    CVE-2026-97205 Public exploit

    NGINX ngx_http_core_module vulnerability

    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 U…

  • High 8.1
    CVE-2026-15176 Public exploit

    NGINX ngx_http_core_module vulnerability

    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 achi…

  • Medium 6.5
    CVE-2026-97629 Public exploit

    NGINX ngx_http_ssl_module vulnerability

    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 for…

  • High 8.1
    CVE-2026-42533 Public exploit

    NGINX Map directive and Regex matching vulnerability

    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 achiev…

  • High 8.1
    CVE-2026-42530 Public exploit

    NGINX Open-Source ngx_http_v3_module vulnerability

    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 beyond their control can use a specially crafted HTTP/3 session…

  • High 8.1
    CVE-2026-42055 Public exploit

    NGINX ngx_http_proxy_v2_module and ngx_http_grpc_module vulnerability

    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_hea…

  • High 8.1
    CVE-2026-9256 Public exploit EPSS 11%

    NGINX ngx_http_rewrite_module vulnerability

    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, ^/…

  • Medium 5.8
    CVE-2026-42926 Public exploit

    NGINX ngx_http_proxy_v2_module vulnerability

    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 …

  • Medium 4.8
    CVE-2026-40701 Public exploit

    NGINX ngx_http_ssl_module vulnerability

    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 th…

  • High 8.1
    CVE-2026-42945 Public exploit EPSS 68%

    NGINX ngx_http_rewrite_module vulnerability

    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 (…

  • Medium 5.4
    CVE-2026-28755 Public exploit

    NGINX ngx_stream_ssl_module vulnerability

    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…

  • High 8.2
    CVE-2026-27654 Public exploit EPSS 26%

    NGINX ngx_http_dav_module vulnerability

    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 modifica…

  • Medium 4.3
    CVE-2025-23419 Public exploit

    TLS Session Resumption Vulnerability

    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://ngin…