{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/mattermost/mattermost-server/v6","cve_ids":["CVE-2026-28741"],"ecosystem":"Go","epss":0.00129,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-m7cf-4gh2-v4qg","id":"tcs_01M5KGMRDFEGZ5VKJ50FQRGDAZ","modified_at":"2026-06-25T23:01:18.246988261Z","published_at":"2026-06-25T22:34:31Z","references":["https://osv.dev/vulnerability/GO-2026-5495","https://github.com/advisories/GHSA-m7cf-4gh2-v4qg","https://nvd.nist.gov/vuln/detail/CVE-2026-28741","https://mattermost.com/security-updates"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"GO-2026-5495#Go/github.com/mattermost/mattermost-server/v6","url":"https://osv.dev/vulnerability/GO-2026-5495"},{"source":"nvd","source_id":"CVE-2026-28741","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28741"}],"summary":"Mattermost doesn't validate CSRF tokens on an authentication endpoint in github.com/mattermost/mattermost-server"}