vulnerability

Red Hat: CVE-2025-66200: httpd: Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo (Multiple Advisories)

Severity
6
CVSS
(AV:N/AC:L/Au:S/C:N/I:P/A:P)
Published
Dec 5, 2025
Added
Dec 23, 2025
Modified
Dec 24, 2025

Description

mod_userdir+suexec bypass via AllowOverride FileInfo vulnerability in Apache HTTP Server. Users with access to use the RequestHeader directive in htaccess can cause some CGI scripts to run under an unexpected userid.

This issue affects Apache HTTP Server: from 2.4.7 through 2.4.65.

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

Solutions

redhat-upgrade-httpdredhat-upgrade-httpd-coreredhat-upgrade-httpd-core-debuginforedhat-upgrade-httpd-debuginforedhat-upgrade-httpd-debugsourceredhat-upgrade-httpd-develredhat-upgrade-httpd-filesystemredhat-upgrade-httpd-manualredhat-upgrade-httpd-toolsredhat-upgrade-httpd-tools-debuginforedhat-upgrade-mod_http2redhat-upgrade-mod_http2-debuginforedhat-upgrade-mod_http2-debugsourceredhat-upgrade-mod_ldapredhat-upgrade-mod_ldap-debuginforedhat-upgrade-mod_luaredhat-upgrade-mod_lua-debuginforedhat-upgrade-mod_mdredhat-upgrade-mod_md-debuginforedhat-upgrade-mod_md-debugsourceredhat-upgrade-mod_proxy_htmlredhat-upgrade-mod_proxy_html-debuginforedhat-upgrade-mod_sessionredhat-upgrade-mod_session-debuginforedhat-upgrade-mod_sslredhat-upgrade-mod_ssl-debuginfo
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.