CVE-2026-22545

Password Change Bypass via Auth Switch Endpoint

Published Mar 16, 2026 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
Description
Mattermost versions 10.11.x <= 10.11.10 fail to validate user's authentication method when processing account auth type switch which allows an authenticated attacker to change account password without confirmation via falsely claiming a different auth provider.. Mattermost Advisory ID: MMSA-2026-00583

Remediation

Vendor Solution

Update Mattermost to versions 11.4.0, 10.11.11 or higher.

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-rv67-7w2g-7976 Mattermost fails to validate user's authentication method when processing account auth type switch
References
History
Type Values Removed Values Added
First Time appeared Mattermost mattermost Server
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Vendors & Products Mattermost mattermost Server
Type Values Removed Values Added
First Time appeared Mattermost
Mattermost mattermost
Vendors & Products Mattermost
Mattermost mattermost
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Mattermost versions 10.11.x <= 10.11.10 fail to validate user's authentication method when processing account auth type switch which allows an authenticated attacker to change account password without confirmation via falsely claiming a different auth provider.. Mattermost Advisory ID: MMSA-2026-00583
Title Password Change Bypass via Auth Switch Endpoint
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Mar 16, 2026, 6:15 PM
Reserved
Feb 13, 2026, 10:01 AM
Status
Analyzed
Published
Mar 16, 2026, 3:16 PM
Modified
Jun 17, 2026, 10:20 AM