CVE-2026-9699

MEDIUM
6.8CVSS v3
CVSS v2
0.33% EPSS (exploit probability)
CWE-532CWE

Description

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 support packets to obtain a valid or partially reconstructable OpenAI API key via inspection of mattermost.log entries generated during authentication failures. Mattermost Advisory ID: MMSA-2026-00609

CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Affected routers (0)

No routers currently mapped to this CVE in our database.

External references