CVE-2025-66200
MEDIUM5.4EPSS 0.04%Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo
Published: 12/5/2025Modified: 4/28/2026
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.
Affected packages (3)
- Alpine/apache2from 0, < 2.4.66-r0
- Bitnami/apache>= 2.4.7, < 2.4.66
- Debian/apache2from 0, < 2.4.66-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |