CVE-2026-3109 in Plugins

Sumário

de MITRE • 26/03/2026

Mattermost Plugins versions <=11.4 10.11.11.0 fail to validate webhook request timestamps which allows an attacker to corrupt Zoom meeting state in Mattermost via replayed webhook requests. Mattermost Advisory ID: MMSA-2026-00584

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• Responsável: Mattermost
• Reservar: 24/02/2026
• Divulgação: 26/03/2026
• Moderação: aceite
• Entrada: VDB-353696
• CPE: pronto
• CWE: CWE-754 (confirmado)
• CVSS: 2.2 (CNA)
• EPSS: 0.00016
• KEV: não
• Atividades: muito baixo
• Sector: Insurance, Lawfirm, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-3109
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3109
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-3109/