CVE-2026-56154: apache http_server

CVSS 9.8 (critical) · published 2026-10-01

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.

Affected products (NVD): apache http_server

Fixed in (NVD): 2.4.69

Weakness: CWE-416

Source: NVD CVE-2026-56154

References

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

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