Vulnerability Monitor

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CVE-2025-66200

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.

Published

2025-12-05T11:15:52.747

Last Modified

2025-12-10T16:39:43.707

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.4 (MEDIUM)

Weaknesses

Type: Secondary
CWE-288

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	apache	http_server	< 2.4.66	Yes

References

https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2025/12/04/8 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)