{"id":"GHSA-j6gg-r5jc-47cm","revision":"3aa68196952347ea8bd773fbeb78651f","records":[{"revision":"3aa68196952347ea8bd773fbeb78651f","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-j6gg-r5jc-47cm","aliases":["CVE-2025-11776","GO-2025-4126"],"title":"Mattermost fails to properly restrict access to archived channel search API","description":"Mattermost versions < 11 fail to properly restrict access to archived channel search API which allows guest users to discover archived public channels via the `/api/v4/teams/{team_id}/channels/search_archived` endpoint","state":0,"publishedAt":"2025-11-14T09:30:27+00:00","modifiedAt":"2025-11-17T19:58:46.484873+00:00","affected":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"8.0.0-20250815165020-c8d66301415d"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"5.3.2-0.20250815165020-c8d66301415d"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"5.3.2-0.20250815165020-c8d66301415d"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server/v5","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"5.3.2-0.20250815165020-c8d66301415d"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server/v6","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"5.3.2-0.20250815165020-c8d66301415d"}]}],"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-2025-11776","https://github.com/mattermost/mattermost/commit/c8d66301415d5b447df0e829bdbaa92e8a83ecf8","https://mattermost.com/security-updates"],"sourceUrl":"https://github.com/advisories/GHSA-j6gg-r5jc-47cm","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-j6gg-r5jc-47cm","identifiers":["GHSA-j6gg-r5jc-47cm","CVE-2025-11776","GO-2025-4126"]},"retained":false,"historicalAffected":[]}],"coverage":[]}