CVE-2026-56154

Published 1 October 2026 · tracked since 2 October 2026

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.

References

• NVD — National Vulnerability Database
• CVE.org record (MITRE)
• CISA Known Exploited Vulnerabilities catalog

Latest tracked vulnerabilities

• CVE-2026-104052 MEDIUM 6.3
• CVE-2026-104053 MEDIUM 6.3
• CVE-2026-103097 HIGH 7.5
• CVE-2026-103096 HIGH 7.5
• CVE-2026-103764 CRITICAL 9.8
• CVE-2026-103766 HIGH 7.2
• CVE-2026-103760 MEDIUM 5.9
• CVE-2026-104002 MEDIUM 5.3
• CVE-2026-104356 MEDIUM 5.9
• CVE-2026-104182 MEDIUM 6.2

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