CESS-2026-22545 — Vulnetix

CESS-2026-22545 PUBLISHED CVSS 3.5 LOW

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

Risk Scores

CVSS 3.1

3.5

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Timeline

Mar 16, 2026 CVE Published

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