CVE-2026-23918

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.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

50% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-26)

CWEs

CWE-415, CWE-1341

Published

2026-05-04

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• apache:http_server

References

• https://httpd.apache.org/security/vulnerabilities_24.html
• http://www.openwall.com/lists/oss-security/2026/05/04/19
• https://access.redhat.com/errata/RHSA-2026:13938
• https://access.redhat.com/security/cve/CVE-2026-23918
• https://bugzilla.redhat.com/show_bug.cgi?id=2465304

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