← Web server & TLS software CVEs

CRITICAL 9.8Apache httpd

CVE-2026-56154

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.

Description from NVD (National Vulnerability Database).

Product
Apache httpd
Severity
CVSS 9.8 · CRITICAL
Published
Source
NVD (National Vulnerability Database) · View on NVD

Severity is the CVSS score; the real impact depends on the version and configuration you run. Always check affected versions and fixes in the original advisory.