CVE-2026-23918

Summary

Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol.

This issue affects Apache HTTP Server: 2.4.66.

Users are recommended to upgrade to version 2.4.67, which fixes the issue.

Affected Software

Weaknesses

• CWE-415: CWE-415 Double Free

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/05/04/19

Apache HTTP Server: Apache HTTP Server: Remote Code Execution via Double Free in HTTP/2 Protocol

Additional References

• https://access.redhat.com/security/cve/CVE-2026-23918
• https://bugzilla.redhat.com/show_bug.cgi?id=2465304
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23918.json
• https://access.redhat.com/errata/RHSA-2026:13938

References

• https://httpd.apache.org/security/vulnerabilities_24.html

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