{"id":"GO-2025-4133","revision":"3535654d2a1d4639a27a1d486c063165","records":[{"revision":"3535654d2a1d4639a27a1d486c063165","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2025-4133","aliases":["CVE-2025-55074","GHSA-9hh7-6558-qfp2"],"title":"Mattermost allows other users to determine when users had read channels via channel member objects in github.com/mattermost/mattermost-server","description":"Mattermost allows other users to determine when users had read channels via channel member objects in github.com/mattermost/mattermost-server.\n\nNOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.\n\n(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)\n\nThe additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.0.0-20250905150616-ba86dfc5876b6.","state":0,"publishedAt":"2025-11-25T18:12:18+00:00","modifiedAt":"2026-03-03T04:57:38.131658+00:00","affected":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"10.5.0+incompatible"},{"kind":"fixed","version":"10.5.12+incompatible"},{"kind":"introduced","version":"10.11.0+incompatible"},{"kind":"fixed","version":"10.11.4+incompatible"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server/v5","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server/v6","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/advisories/GHSA-9hh7-6558-qfp2","https://nvd.nist.gov/vuln/detail/CVE-2025-55074","https://github.com/mattermost/mattermost/commit/98acefe911dd9de7edf47a7d825dd99f53141a52","https://github.com/mattermost/mattermost/commit/ba86dfc5876b354b9d3c20ff45c08ca6f8426149","https://github.com/mattermost/mattermost/commit/d72d437f1567ba0b639b6e4fd73bab06c51baab5","https://github.com/mattermost/mattermost/pull/33835","https://github.com/mattermost/mattermost/pull/33905","https://mattermost.com/security-updates"],"sourceUrl":"https://osv.dev/vulnerability/GO-2025-4133","license":"OSV · upstream source license applies","key":"osv:GO-2025-4133","identifiers":["GO-2025-4133","CVE-2025-55074","GHSA-9hh7-6558-qfp2"]},"retained":false,"historicalAffected":[]}],"coverage":[]}