CVE-2025-12689

DoS in Calls plugin via malformed UTF-8 in WebSocket request

CVSS 6.5 MEDIUMEPSS 0.2%CWE-1287

Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed request.

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

Produtos afetados

Mattermost · Mattermost

Quer saber se a sua infraestrutura está exposta a isto?

Falar com a TrueHacking →

Referências

https://mattermost.com/security-updates