GitHub Advisoryadvisory · Go

GHSA-rv67-7w2g-7976 Mattermost fails to validate user's authentication method when processing account auth type switch

LOW Published 2026-03-16 Modified 2026-03-19 Official page ↗
Aliases
CVE-2026-22545
Ecosystem
Go
Packages
github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost-server
Severity
Low
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Weaknesses
CWE-863
Reviewed
2026-03-19

Affected packages

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

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

Related

Alias · CVE (1)

  • CVE-2026-22545 Mattermost versions 10.11.x <= 10.11.10 fail to validate user's authentication method when processing account auth type switch which allows… vulnerability

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References