CVE-2026-23918

Public on 2026-05-04

Modified on 2026-05-06

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.

Severity

Important

See what this means

CVSS v3 Base Score

8.1

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	httpd	Not Affected
Amazon Linux 2023	httpd	Not Affected
Amazon Linux 2 - Core	mod_http2	Not Affected
Amazon Linux 2023	mod_http2	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-23918 Mitre: CVE-2026-23918