Unrated severityNVD Advisory· Published Mar 16, 2026· Updated Mar 17, 2026
Admin RCE via Malicious Plugin Upload on CI Test Instances
CVE-2026-2462
Description
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to restrict plugin installation on CI test instances with default admin credentials which allows an unauthenticated attacker to achieve remote code execution and exfiltrate sensitive configuration data including AWS and SMTP credentials via uploading a malicious plugin after changing the import directory. Mattermost Advisory ID: MMSA-2025-00528
Affected products
1- Range: 11.3.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- mattermost.com/security-updatesmitrevendor-advisory
News mentions
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