{"id":"GHSA-7cr3-38jm-6p45","revision":"9266cd16b6af482caef7d2fb2c8b97bb","records":[{"revision":"9266cd16b6af482caef7d2fb2c8b97bb","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-7cr3-38jm-6p45","aliases":["CVE-2025-41443","GO-2025-4031"],"title":"Mattermost has a Missing Authorization vulnerability","description":"Mattermost versions 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when accessing channel information which allows guest users to discover active public channels and their metadata via the `/api/v4/teams/{team_id}/channels/ids` endpoint","state":0,"publishedAt":"2025-10-16T09:30:24+00:00","modifiedAt":"2025-11-05T19:57:38.536178+00:00","affected":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"8.0.0-20250822090405-e8c7e7d0252b"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"10.5.0"},{"kind":"fixed","version":"10.5.11"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"10.11.0"},{"kind":"fixed","version":"10.11.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2025-41443","https://github.com/mattermost/mattermost/pull/31327","https://github.com/mattermost/mattermost/pull/33778","https://github.com/mattermost/mattermost/commit/e8c7e7d0252bbf1e098aae4a5ea05d945afd7e70","https://github.com/mattermost/mattermost","https://mattermost.com/security-updates"],"sourceUrl":"https://github.com/advisories/GHSA-7cr3-38jm-6p45","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-7cr3-38jm-6p45","identifiers":["GHSA-7cr3-38jm-6p45","CVE-2025-41443","GO-2025-4031"]},"retained":false,"historicalAffected":[]}],"coverage":[]}