What is CVE-2026-124431?

CVE-2026-124431 is a medium-severity vulnerability in Craftcms Cms, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-11-08.

How severe is CVE-2026-124431?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Craftcms Cms

CVE-2026-124431

Craft CMS from 5.10.0 before 5.11.2 contains an authorization bypass vulnerability that allows authenticated low-privileged users to browse volumes they lack permissions for. Attackers can delete a linked asset and use the replacement volume browser modal to view directory structures of all volumes, though not file contents.

Vulnerability class: Broken Access Control

Published 2026-11-08.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Craftcms Cms

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

GitHub Security Advisory (GHSA-hvp5-pwxx-2752) (vendor-advisory)
VulnCheck Advisory: Craft CMS 5.10.0 before 5.11.2 Unauthorized Volume Browsing via Asset Replacement (third-party-advisory)

Frequently asked questions

What is CVE-2026-124431?: CVE-2026-124431 is a medium-severity vulnerability in Craftcms Cms, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-11-08.
How severe is CVE-2026-124431?: Medium severity. CVSS v3 base score is 4.3 out of 10.