{"id":"GO-2025-4170","revision":"fc58e80eff8848cfb9cca1d8cab84bff","records":[{"revision":"fc58e80eff8848cfb9cca1d8cab84bff","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2025-4170","aliases":["CVE-2025-12421","GHSA-mp6x-97xj-9x62"],"title":"Mattermost fails to to verify the token used during code exchange in github.com/mattermost/mattermost-server","description":"Mattermost fails to to verify the token used during code exchange 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 from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.","state":0,"publishedAt":"2025-12-15T20:33:49+00:00","modifiedAt":"2026-03-03T04:57:44.235626+00:00","affected":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"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"},{"kind":"fixed","version":"8.0.0-20251022210333-acda1fb5dd46"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/advisories/GHSA-mp6x-97xj-9x62","https://nvd.nist.gov/vuln/detail/CVE-2025-12421","https://github.com/mattermost/mattermost/commit/5072bbf689a46b3b97b2373f26149f5891396e6b","https://github.com/mattermost/mattermost/commit/acda1fb5dd46a2f46c76ae67012423c760525eaa","https://github.com/mattermost/mattermost/commit/f361e7d75a7ab9df5a2106e1ceb919b94b55e41d","https://github.com/mattermost/mattermost/commit/feb598ed2b7ac3cb78a253b032ad7e4628b0de00","https://mattermost.com/security-updates"],"sourceUrl":"https://osv.dev/vulnerability/GO-2025-4170","license":"OSV · upstream source license applies","key":"osv:GO-2025-4170","identifiers":["GO-2025-4170","CVE-2025-12421","GHSA-mp6x-97xj-9x62"]},"retained":false,"historicalAffected":[]}],"coverage":[]}