GHSA-rv67-7w2g-7976LowCVSS 3.1

Mattermost fails to validate user's authentication method when processing account auth type switch

Published
March 16, 2026
Last Modified
March 19, 2026

🔗 CVE IDs covered (1)

CVE-2026-22545 →

📋 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

🎯 Affected products5

  • go/github.com/mattermost/mattermost/server/v8:< 8.0.0-20260127144908-ced9a56e3988
  • go/github.com/mattermost/mattermost-server:< 5.3.2-0.20260127144908-ced9a56e3988
  • go/github.com/mattermost/mattermost-server:>= 10.11.0-rc1, < 10.11.11
  • go/github.com/mattermost/mattermost-server:>= 11.2.0-rc1, < 11.2.3
  • go/github.com/mattermost/mattermost-server:>= 11.3.0-rc1, < 11.3.1

🔗 References (4)