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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

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Mattermost/Mattermostllm-fuzzy2 versions
    <= 11.3.0 || <= 11.2.2 || <= 10.11.10+ 1 more
    • (no CPE)range: <= 11.3.0 || <= 11.2.2 || <= 10.11.10
    • (no CPE)range: 11.3.0

Patches

Vulnerability mechanics

References

1

News mentions

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