CVE-2026-40460 NGINX ngx_quic_module vulnerability

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...

CVE-2026-42926

When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxyhttpversion to 2, and also uses proxysetbody, 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...

CVE-2026-40460 NGINX ngx_quic_module vulnerability

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...

CVE-2026-42926 NGINX ngx_http_proxy_v2_module vulnerability

When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxyhttpversion to 2, and also uses proxysetbody, 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...

CVE-2026-42926

When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxyhttpversion to 2, and also uses proxysetbody, 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...

CVE-2026-42926

The connected F5 advisory confirms CVE-2026-42926 affects NGINX Open Source’s ngx_http_proxy_v2_module when proxy_http_version is set to 2 and proxy_set_body is used. The vulnerability allows a remote attacker to inject arbitrary HTTP/2 frame headers and payload bytes into the upstream connection...

CVE-2026-40460

CVE-2026-40460 affects NGINX Plus ngx_quic_module and NGINX Open Source when HTTP/3 QUIC is enabled. An attacker could spoof the source IP to bypass authorization or rate limiting, potentially enabling unauthorized access or DoS. Remediation per the connected advisory: upgrade to vulnerable-produ...

CVE-2026-40460

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...

CVE-2026-42946

A vulnerability exists in the ngxhttpscgimodule and ngxhttpuwsgimodule modules that may result in excessive memory allocation or an over-read of data. When scgipass or uwsgipass is configured, an unauthenticated attacker with man-in-the-middle MITM ability to control responses from an upstream...

CVE-2026-42946

A vulnerability exists in the ngxhttpscgimodule and ngxhttpuwsgimodule modules that may result in excessive memory allocation or an over-read of data. When scgipass or uwsgipass is configured, an unauthenticated attacker with man-in-the-middle MITM ability to control responses from an upstream...

CVE-2026-42934 NGINX ngx_http_charset_module vulnerability

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpcharsetmodule module. When charset, sourcecharset, and charsetmap and proxypass with disabled buffering "off" directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' contr...

CVE-2026-42934

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpcharsetmodule module. When charset, sourcecharset, and charsetmap and proxypass with disabled buffering "off" directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' contr...

CVE-2026-42934

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpcharsetmodule module. When charset, sourcecharset, and charsetmap and proxypass with disabled buffering "off" directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' contr...

Buffer overread in the ngx_http_scgi_module and ngx_http_uwsgi_module

Buffer overread in the ngxhttpscgimodule and ngxhttpuwsgimodule Severity: medium CVE-2026-42946 Not vulnerable: 1.31.0+, 1.30.1+ Vulnerable: 0.8.42-1.30.0...

CVE-2026-42946

A vulnerability CVE-2026-42946 affects the NGINX ngx_http_scgi_module and ngx_http_uwsgi_module. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with MITM control over upstream responses may trigger excessive memory allocation or an out-of-bounds read in the NGINX worker, ...

CVE-2026-42934

The CVE-2026-42934 entry concerns NGINX Plus and NGINX Open Source with a vulnerability in the ngx_http_charset_module. When charset, source_charset, and charset_map are configured together with proxy_pass having buffering disabled, unauthenticated attackers can trigger a heap buffer over-read in...

CVE-2026-42946 NGINX ngx_http_scgi_module and ngx_http_uwsgi_module vulnerability

A vulnerability exists in the ngxhttpscgimodule and ngxhttpuwsgimodule modules that may result in excessive memory allocation or an over-read of data. When scgipass or uwsgipass is configured, an unauthenticated attacker with man-in-the-middle MITM ability to control responses from an upstream...

CVE-2026-42934 NGINX ngx_http_charset_module vulnerability

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpcharsetmodule module. When charset, sourcecharset, and charsetmap and proxypass with disabled buffering "off" directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' contr...

CVE-2026-42946 NGINX ngx_http_scgi_module and ngx_http_uwsgi_module vulnerability

A vulnerability exists in the ngxhttpscgimodule and ngxhttpuwsgimodule modules that may result in excessive memory allocation or an over-read of data. When scgipass or uwsgipass is configured, an unauthenticated attacker with man-in-the-middle MITM ability to control responses from an upstream...

CVE-2026-42934

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpcharsetmodule module. When charset, sourcecharset, and charsetmap and proxypass with disabled buffering "off" directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' contr...