CVE-2026-9699mediumCWE-532

CVE-2026-9699: falha de média gravidade em Mattermost

Mattermost Agents plugin logs unsanitized OpenAI API keys on authentication errors

Publicada em 26 jun 2026

13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 6.8epss 0.5%

probabilidade de exploração

0.5%top 62% das CVEs

exploração observada

nãonenhuma fonte reporta

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

Produtos afetados

Mattermost · Mattermost

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Referências

https://mattermost.com/security-updates