Astra Linux – Vulnerability in Apache2

Apache HTTP Server 2.4.65 and earlier, with Server Side Includes SSI enabled and modcgid but not modcgi, pass the shell-escaped query string to the exec cmd="..." directives. This issue affects Apache HTTP Server versions prior to 2.4.66. Users are recommended to upgrade to version 2.4.66, which...

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Payara Server contains a vulnerability in its Server-Side Includes SSI implementation that allows arbitrary operating system command execution via the exec directive. The issue occurs because user-controlled SSI directives are passed directly to Runtime.exec without validation, sanitization, or...

Amazon Linux 2 : nginx, --advisory ALAS2NGINX1-2026-015 (ALASNGINX1-2026-015)

The version of nginx installed on the remote host is prior to 1.30.4-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2NGINX1-2026-015 advisory. A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string...

Oracle Linux 8 : httpd:2.4 (ELSA-2026-42828)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-42828 advisory. - Resolves: RHEL-173558 - httpd:2.4/httpd: Apache HTTP Server modproxyajp: Arbitrary code execution via heap-based buffer overflow CVE-2026-28780 -...

USN-8563-2: nginx regression

USN-8563-1 fixed vulnerabilities in nginx. One of the fixes introduced ABI changes that could cause issues with external modules. This update reverts the fix for CVE-2026-42533 pending further investigation. We apologize for the inconvenience. Original advisory details: It was discovered that ngi...

USN-8563-1 nginx vulnerabilities

It was discovered that nginx incorrectly handled certain map directives using regex matching and capture variables. A remote attacker could use this issue to cause nginx to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2026-42533 It was discovered that nginx had...

USN-8563-1: nginx vulnerabilities

It was discovered that nginx incorrectly handled certain map directives using regex matching and capture variables. A remote attacker could use this issue to cause nginx to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2026-42533 It was discovered that nginx had...

NGINX ngx_http_ssi_module vulnerability

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Angie -- multiple vulnerabilities

The Angie Software Team reports: When evaluating a string expression in which unnamed capture variables $1, $2, etc. preceded a map directive variable whose value is determined by a regular expression, or when using a non-cacheable volatile map directive variable whose key contained a capture...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-56434

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass,...

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...

ALPINE-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...

EUVD-2026-44684

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...

K000162098: NGINX ngx_http_ssi_module vulnerability CVE-2026-56434

Security Advisory Description 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 wi...

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...

EulerOS Virtualization 2.13.0 : httpd (EulerOS-SA-2026-2170)

According to the versions of the httpd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Apache HTTP Server 2.4.65 and earlier with Server Side Includes SSI enabled and modcgid but not modcgi passes the shell-escaped quer...