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Mattermost Server und Plugins: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff
view advisory published 2026-05-27
Ein Angreifer kann mehrere Schwachstellen in Mattermost Server und Plugins ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
01
describes (3)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-9699US | — | — | ||
Mattermost Plugins versions <=11.6 10.18.11 11.3.6 11.6.5.0 fail to sanitize error responses from the OpenAI API before logging, which allows a user with access to server logs or s… | ||||
| CVE-2026-4339US | — | — | ||
Mattermost versions 10.11.x <= 10.11.18, 11.6.x <= 11.6.3, 11.5.x <= 11.5.6 fail to validate attachment URLs against internal or private IP ranges in the Mattermost Agents plugin M… | ||||
| CVE-2026-3472US | — | — | ||
Mattermost versions 10.11.x <= 10.11.18, 11.6.x <= 11.6.3, 11.5.x <= 11.5.6 fail to properly apply markdown image rendering restrictions to AI bot tool result posts, which allows a… | ||||
02
references
External citations — patches, advisories, analysis.
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