CVE-2026-22545

LOW

Password Change Bypass via Auth Switch Endpoint

Title source: cna

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

References (1)

[Vendor Advisory] https://mattermost.com/security-updates

Scores

CVSS v3 3.1

EPSS 0.0004

EPSS Percentile 14.0%

Attack Vector NETWORK

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

Details

CWE

CWE-863

Status published

Products (6)

mattermost/mattermost 0 - 8.0.0-20260127144908-ced9a56e3988Go

Mattermost/Mattermost 10.11.0 - 10.11.10

Mattermost/Mattermost 10.11.11

Mattermost/Mattermost 11.4.0

mattermost/mattermost-server 0 - 5.3.2-0.20260127144908-ced9a56e3988Go

mattermost/mattermost_server 10.11.0 - 10.11.11

Published Mar 16, 2026

Tracked Since Mar 16, 2026