CVE-2026-42528

Public on 2026-10-01

Modified on 2026-10-03

Description

A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.

Users are recommended to upgrade to version 2.4.69, which fixes this issue

Severity

Medium

See what this means

CVSS v3 Base Score

4.3

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	httpd	Pending Fix
Amazon Linux 2023	httpd	Pending Fix
Amazon Linux 2027 Preview	httpd	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-42528 Mitre: CVE-2026-42528