{"action":"Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20260506065351-202d125afa87 or later.","affected":[{"fixed":"8.0.0-20260506065351-202d125afa87","introduced":"8.0.0-20250731163400-5b955468ea1e"}],"component":"github.com/mattermost/mattermost/server/v8","cve_ids":["CVE-2026-7387"],"ecosystem":"Go","epss":0.00417,"exploited":false,"fixed_versions":["8.0.0-20260506065351-202d125afa87"],"ghsa_id":"GHSA-6hxm-w4hv-vgvw","id":"tcs_01M5KGSW21TG6M014SFB56PDY1","modified_at":"2026-08-26T01:21:40.499382957Z","published_at":"2026-08-25T19:43:10Z","references":["https://osv.dev/vulnerability/GO-2026-6280","https://github.com/advisories/GHSA-6hxm-w4hv-vgvw","https://nvd.nist.gov/vuln/detail/CVE-2026-7387","https://github.com/mattermost/mattermost/commit/1ce2484a00c9821ee19708d2c46720e4855033a9","https://github.com/mattermost/mattermost/commit/202d125afa87fe39611686850fd82590c99ca344","https://github.com/mattermost/mattermost/commit/8c72083414e675c97987374395e36d1f36b4bd8a","https://github.com/mattermost/mattermost/commit/a9e574a82633915f22071f0d7ca2b006f249ec2a","https://github.com/mattermost/mattermost/commit/d5f29c8ebbeb04460d16d9e2635ce50deeb78428","https://github.com/mattermost/mattermost/pull/36316","https://github.com/mattermost/mattermost/pull/36423","https://github.com/mattermost/mattermost/pull/36431","https://github.com/mattermost/mattermost/pull/36432","https://github.com/mattermost/mattermost/pull/36434","https://github.com/mattermost/mattermost/releases/tag/v10.11.16","https://github.com/mattermost/mattermost/releases/tag/v11.5.5","https://github.com/mattermost/mattermost/releases/tag/v11.6.2","https://github.com/mattermost/mattermost/releases/tag/v11.7.0","https://mattermost.com/security-updates"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-6280#Go/github.com/mattermost/mattermost/server/v8","url":"https://osv.dev/vulnerability/GO-2026-6280"}],"summary":"Mattermost doesn't require role-management authorization when setting the scheme_admin flag on group syncable link and patch endpoints in github.com/mattermost/mattermost-server"}