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
Users are recommended to upgrade to version 2.4.69, which fixes this issue
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | httpd | 2026-10-12 | ALAS2-2026-3990 | Fixed |
| Amazon Linux 2023 | httpd | 2026-10-12 | ALAS2023-2026-3202 | Fixed |
| Amazon Linux 2027 Preview | httpd | 2026-10-12 | ALAS2027-2026-207 | Fixed |
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 |