{"id":"GO-2026-6285","summary":"Mattermost doesn't require system-level permission when patching protected default system roles in github.com/mattermost/mattermost-server","details":"Mattermost doesn't require system-level permission when patching protected default system roles in github.com/mattermost/mattermost-server","aliases":["CVE-2026-6739","GHSA-m2w9-h2mm-79qr"],"modified":"2026-08-26T01:13:02.633880763Z","published":"2026-08-25T19:43:10Z","database_specific":{"review_status":"UNREVIEWED","url":"https://pkg.go.dev/vuln/GO-2026-6285"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-m2w9-h2mm-79qr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6739"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/2c89c2f6768fbe4dfd57a21ca38c0aecead8d4a8"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/5e159647b16e571b327ac6882f32eae42971f540"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/8000e5933526f4fd66b92131db3a1b1f4520dbae"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/f0a390b96e4c730daedbaf5190684776730218c7"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36197"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36377"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36379"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36380"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36382"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/releases/tag/v10.11.16"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/releases/tag/v11.5.5"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/releases/tag/v11.6.2"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/releases/tag/v11.7.0"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"affected":[{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.11.0+incompatible"},{"fixed":"10.11.17+incompatible"},{"introduced":"11.5.0+incompatible"},{"fixed":"11.5.5+incompatible"},{"introduced":"11.6.0+incompatible"},{"fixed":"11.6.1+incompatible"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6285.json"}},{"package":{"name":"github.com/mattermost/mattermost-server/v5","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server/v5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6285.json"}},{"package":{"name":"github.com/mattermost/mattermost-server/v6","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server/v6"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6285.json"}},{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0-20250731163400-5b955468ea1e"},{"fixed":"8.0.0-20260501142004-99b73d4c4acf"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6285.json"}}],"schema_version":"1.9.0"}