CVEvulnerability

CVE-2026-22880

6.1 MEDIUM Published 2026-05-21 Modified 2026-08-06 Official page ↗
Status
Analyzed
Published
2026-05-21
Last modified
2026-08-06
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.1 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
Weaknesses
CWE-352

Description

Mattermost Mobile Apps versions <=2.37 11.4 2.0.37 11.0.4 11.1.3 11.3.2 10.11.11.0 fail to properly validate the SSO authentication callback origin which allows an attacker controlling a malicious Mattermost server to steal user credentials for a legitimate Mattermost server via relaying the SSO code exchange flow through the mobile application. Mattermost Advisory ID: MMSA-2025-00564

Affected configurations

• mattermost mattermost mobile (< 2.37.1)

Related

Weakness · CWE (1)

  • CWE-352 Cross-Site Request Forgery weakness

References