{"action":"Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20260217110922-b7d4a1f1f59b or later.","affected":[{"fixed":"8.0.0-20260217110922-b7d4a1f1f59b","introduced":"8.0.0-20260105080200-d27a2195068d"}],"component":"github.com/mattermost/mattermost/server/v8","cve_ids":["CVE-2026-4274"],"ecosystem":"Go","epss":0.00143,"exploited":false,"fixed_versions":["8.0.0-20260217110922-b7d4a1f1f59b"],"ghsa_id":"GHSA-g7fp-cqj5-x8hf","id":"tcs_01M5KGKZM975XP325W59BQ0YNS","modified_at":"2026-06-25T19:45:37.546431655Z","published_at":"2026-06-25T18:43:19Z","references":["https://osv.dev/vulnerability/GO-2026-5393","https://github.com/advisories/GHSA-g7fp-cqj5-x8hf","https://nvd.nist.gov/vuln/detail/CVE-2026-4274","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"GO-2026-5393#Go/github.com/mattermost/mattermost/server/v8","url":"https://osv.dev/vulnerability/GO-2026-5393"},{"source":"nvd","source_id":"CVE-2026-4274","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4274"}],"summary":"Mattermost has an Incorrect Authorization issue in github.com/mattermost/mattermost-server"}