CVE-2026-21333

creationtimestamp| type| source ---|---|--- 2026-03-11 14:35:00+00:00| seen| https://www.cert.se/2026/03/patchtisdag-mars-2026-samlad-information-om-manadens-sakerhetsuppdateringar.html 2026-03-21 06:33:04+00:00| seen| https://bsky.app/profile/secqube.com/post/3mhkfwoeryn2y...

Improper Privilege Management in Mattermost

One of the API in Mattermost version 6.4.1 and earlier fails to properly protect the permissions, which allows the authenticated members with restricted custom admin role to bypass the restrictions and view the server logs and server config.json file contents. Per the Mattermost security updates...