Mattermost Mattermost Mobile vulnerabilities
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Published CVEs affecting Mattermost Mattermost Mobile: 2 record(s), with affected versions and fixes.cpe:2.3:a:mattermost:mattermost_mobile
CVE-2026-22880
Medium · 6.1
CWE-352 May 21, 2026
Mobile SSO authentication flow allows credential theft via malicious server
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
CVE-2025-59480
Medium · 6.5
CWE-352 Nov 13, 2025
Inadequate validation of SSO redirect credentials permits credential theft
Mattermost Mobile Apps versions <=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which allows a malicious Mattermost instance or on-path attacker to obtain user session credentials via crafted token-in-URL responses