Medium 5.4Published Dec 5, 2025

CVE-2025-66200Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo

Updated under an hour ago (Oct 28, 2026, 1:50 PM ET)

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It affects Apache Software Foundation Apache HTTP Server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apache Software Foundation Apache HTTP Server

Exploited in the last 30 days

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.

CVSS: 5.4 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE): CWE-288
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Analyzed
Record last updated: Dec 5, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache HTTP Server apache_software_foundation:apache_http_server (from the name)	from 2.4.7 through 2.4.65	CNA record
apache http_server apache:http_server	from 2.4.7 before 2.4.66	NVD

References

References

https://httpd.apache.org/security/vulnerabilities_24.html	vendor-advisory
http://www.openwall.com/lists/oss-security/2025/12/04/8	issue-tracking, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.