CVE-2026-23918

high

Published 2026-05-04 · Modified 2026-05-04

CVSS v3

8.8

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

CVSS v2

—

VIR risk

8.8

Description

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.

Predictions

Exploit likelihood

92%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-23918.html

vendor Authored 2026-05-27

Vendor advisory: security@apache.org — https://httpd.apache.org/security/vulnerabilities_24.html

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-23918

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`2.4.67-1~deb12u2`
debian	bullseye	fixed	`0`
debian	forky	fixed	`2.4.66-5`
debian	sid	fixed	`2.4.66-5`
debian	trixie	fixed	`2.4.66-1~deb13u2`
sles		affected

Application impact

Vendor	Product	Versions	Fixed
apache	http_server	`2.4.66`

References

CWEs

CWE-415

Verify integrity in audit chain (admin only). AS-IS.