CVE-2026-3109

{"id": "CVE-2026-3109", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "responsibledisclosure@mattermost.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.2, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 0.7}]}, "published": "2026-03-26T17:16:41.967", "references": [{"url": "https://mattermost.com/security-updates", "source": "responsibledisclosure@mattermost.com"}], "vulnStatus": "Undergoing Analysis", "weaknesses": [{"type": "Secondary", "source": "responsibledisclosure@mattermost.com", "description": [{"lang": "en", "value": "CWE-754"}]}], "descriptions": [{"lang": "en", "value": "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"}, {"lang": "es", "value": "Las versiones &lt;=11.4 10.11.11.0 de los plugins de Mattermost no validan las marcas de tiempo de las solicitudes de webhook, lo que permite a un atacante corromper el estado de las reuniones de Zoom en Mattermost mediante solicitudes de webhook repetidas. ID de aviso de Mattermost: MMSA-2026-00584"}], "lastModified": "2026-03-30T13:26:50.827", "sourceIdentifier": "responsibledisclosure@mattermost.com"}