CVE-2026-22880 Detail
Received
This CVE record has recently been published to the CVE List and has been included within the NVD dataset. DescriptionMattermost 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 Metrics
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CVSS 4.0 Severity and Vector Strings:
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Weakness Enumeration
Quick InfoCVE Dictionary Entry:CVE-2026-22880 NVD Published Date: 05/21/2026 NVD Last Modified: 05/21/2026 Source: Mattermost, Inc. |
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