CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.4. Exploitation may require the attacker to be authenticated.
CVE
CVE-2026-0999
Severity
MEDIUM
CVSS
5.4
EPSS
0.17%
Original NVD Description
Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate login method restrictions which allows an authenticated user to bypass SSO-only login requirements via userID-based authentication. Mattermost Advisory ID: MMSA-2025-00548
Related CVEs
Other vulnerabilities affecting the same vendor(s)