CVE-2026-56154

CRITICAL CVSS 9.8 View on NVD ↗

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://httpd.apache.org/security/vulnerabilities_24.html
http://www.openwall.com/lists/oss-security/2026/10/01/17

Published: Oct 01, 2026 17:17 UTC Modified: Oct 01, 2026 21:17 UTC