CVE-2026-9699
6.8
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Summary
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
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mattermost | Mattermost | 0 <= 10.18.11 | affected |
| Mattermost | Mattermost | 0 <= 11.3.6 | affected |
| Mattermost | Mattermost | 0 <= 11.6.5 | affected |
| Mattermost | Mattermost | 11.7.0 | unaffected |
| Mattermost | Mattermost | 10.11.19 | unaffected |
| Mattermost | Mattermost | 11.6.4 | unaffected |
| Mattermost | Mattermost | 11.5.7 | unaffected |
Weaknesses
- CWE-532: CWE-532: Insertion of Sensitive Information into Log Files
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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