Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Use After Free vulnerability in Apache HTTP Server's mod_rewrite when using
lookahead (%{LA-U:HTTP:...})
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Credit:
Nebula Security (@nebusecurity) (finder)
References:
https://httpd.apache.org/security/vulnerabilities_24.html
https://httpd.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-56154
Timeline:
2026-05-25: reported
2026-10-01: fixed in 2.4.x by r1938660
2026-10-01: 2.4.69 released
