CVE-2025-58098 — Apache HTTP Server: Server Side Includes adds query string to #exec cmd=...

Affected: Apache Software Foundation Apache HTTP Server

Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives.

This issue affects Apache HTTP Server before 2.4.66.

Users are recommended to upgrade to version 2.4.66, which fixes the issue.

USN-7968-1 — apache2 vulnerabilities

Affected: Ubuntu:22.04:LTS: apache2, Ubuntu:24.04:LTS: apache2, Ubuntu:25.10: apache2

It was discovered that the Apache HTTP Server incorrectly handled failed ACME certificate renewals. This could result in renewal attempts to be repeated without delays, possibly leading to a denial of service. (CVE-2025-55753)

Anthony Parfenov discovered that the Apache HTTP Server would pass the query string to cmd directives when configured with Server Side Includes (SSI) enabled and mod_cgid. An attacker could possibly use this issue to execute arbitrary code. (CVE-2025-58098)

Mattias Åsander discovered that the Apache HTTP Server incorrectly neutralized certain environment variables. This could result in unexpectedly superseding variables calculated by the server for CGI programs. (CVE-2025-65082)

Mattias Åsander discovered that the Apache HTTP Server incorrectly handled AllowOverride FileInfo configurations when using mod_userdir with suexec. An attacker with access to use the RequestHeader directive in htaccess can cause some CGI scripts to run under an unexpected userid. (CVE-2025-66200)

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CVE-2025-58098 — Apache HTTP Server: Server Side Includes adds query string to #exec cmd=...

USN-7968-1 — apache2 vulnerabilities