What is CVE-2026-40778?

CVE-2026-40778 is a medium-severity vulnerability in Majestic Support, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-04-15.

How severe is CVE-2026-40778?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Majestic Support

CVE-2026-40778

Missing Authorization vulnerability in Majestic Support Majestic Support majestic-support allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Majestic Support: from n/a through <= 1.1.2.

Vulnerability class: Broken Access Control

EPSS: 0.000 (12.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Majestic Support — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-40778?: CVE-2026-40778 is a medium-severity vulnerability in Majestic Support, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-04-15.
How severe is CVE-2026-40778?: Medium severity. CVSS v3 base score is 5.3 out of 10.