All vulnerabilities

Servers and applications

CVE-2026-56154

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.

Severity
Critical 9.8
Published
1 Oct 2026
Last changed
5 Oct 2026
Added to UpHeron
17 Oct 2026
Fixed in
2.4.69
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • From 2.4.0 before 2.4.69

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-56154
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-56154