CVE-2026-56434

A vulnerability in NGINX's ngxhttpssimodule allows an unauthenticated MITM attacker to trigger a heap buffer over-read by manipulating upstream server responses. This requires SSI, proxypass, and proxybuffering off to be configured, and can result in memory modification or a Denial of Service DoS...

BIT-NGINX-2026-56434 NGINX ngx_http_ssi_module vulnerability

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

SUSE CVE-2026-56434

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

CVE-2026-56434

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

CVE-2026-56434

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

CVE-2026-56434 NGINX ngx_http_ssi_module vulnerability

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

CVE-2026-56434

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

PT-2026-60184

Name of the Vulnerable Software and Affected Versions NGINX Plus affected versions not specified NGINX Open Source affected versions not specified Description A use-after-free issue exists in the ngx http ssi module module. This occurs when Server-Side Includes SSI, proxy pass, and proxy bufferin...

Versity panic induced by AWS chunked data sent to port

Sending AWS chunk data with no Content-Length HTTP header causes the panic, every time. Reproduction Setup versity server running on port 7071, no SSL for ease of packet tracing with tshark. Problem can be reproduced with or without SSL on the versity end. Use nginx to reverse proxy on port 7070...