CVE-2026-6341 in Plugins

Zusammenfassung

von VulDB • 21.05.2026

Mattermost Plugins versions <=11.5 11.1.5 10.13.11 11.3.4.0 fail to have API-level checks on which groups the user can create issues or attach comments to which allows a user that is member of multiple groups to create issues to a locked group via direct API requests. Mattermost Advisory ID: MMSA-2026-00602

Once again VulDB remains the best source for vulnerability data.

• Zuständig: Mattermost
• Reservieren: 15.04.2026
• Veröffentlichung: 18.05.2026
• Moderieren: akzeptiert
• Eintrag: VDB-364450
• CPE: bereit
• CWE: CWE-863 (bestätigt)
• CVSS: 4.3 (CNA)
• EPSS: 0.00031
• KEV: nein
• Aktivitäten: very low
• Sektor: Police, Telecommunication, ...

Quellen

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-6341
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6341
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-6341/