{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/mattermost/mattermost-server/v6","cve_ids":["CVE-2025-55074"],"ecosystem":"Go","epss":0.00182,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-9hh7-6558-qfp2","id":"tcs_01M5KGBS21JW8YED6AKSFV5DKS","modified_at":"2026-03-03T04:57:38.131658Z","published_at":"2025-11-25T18:12:18Z","references":["https://osv.dev/vulnerability/GO-2025-4133","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"],"severity":{"label":"low","score":3.5},"sources":[{"source":"osv","source_id":"GO-2025-4133#Go/github.com/mattermost/mattermost-server/v6","url":"https://osv.dev/vulnerability/GO-2025-4133"},{"source":"nvd","source_id":"CVE-2025-55074","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55074"}],"summary":"Mattermost allows other users to determine when users had read channels via channel member objects in github.com/mattermost/mattermost-server"}