CVE-2026-22545 | THREATINT

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

PUBLISHED Reserved 2026-02-13 | Published 2026-03-16 | Updated 2026-03-16 | Assigner Mattermost

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

Problem types

CWE-863: Incorrect Authorization

Product status

Default status

unaffected

10.11.0 (semver)

affected

11.4.0

unaffected

10.11.11

unaffected

Credits

daw10 finder

References

mattermost.com/security-updates (MMSA-2026-00583) vendor-advisory

cve.org (CVE-2026-22545)

nvd.nist.gov (CVE-2026-22545)

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