{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/mattermost/mattermost-server/v5","cve_ids":["CVE-2026-6689"],"ecosystem":"Go","epss":0.00254,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-c28q-m4gf-vg4q","id":"tcs_01M5KGSXMAFS9F8CAFN1K0KWBC","modified_at":"2026-08-26T01:19:26.146520465Z","published_at":"2026-08-25T19:43:10Z","references":["https://osv.dev/vulnerability/GO-2026-6283","https://github.com/advisories/GHSA-c28q-m4gf-vg4q","https://nvd.nist.gov/vuln/detail/CVE-2026-6689","https://github.com/mattermost/mattermost/commit/2dea05864024b3254fb28c5ed679592e2b7cd672","https://github.com/mattermost/mattermost/commit/3a96344214b1a84df70d97052d46b6f2b40b0caa","https://github.com/mattermost/mattermost/commit/479fc42d0ec6da48e76b59608233d90bfc69769d","https://github.com/mattermost/mattermost/commit/7d6816abdfd170169f717aea43c5716a1f9ef6b0","https://github.com/mattermost/mattermost/commit/977c791e5b54bc14fdb96a2b3dacc85da5d8c623","https://github.com/mattermost/mattermost/pull/36188","https://github.com/mattermost/mattermost/pull/36375","https://github.com/mattermost/mattermost/pull/36383","https://github.com/mattermost/mattermost/pull/36384","https://github.com/mattermost/mattermost/pull/36402","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-2026-6283#Go/github.com/mattermost/mattermost-server/v5","url":"https://osv.dev/vulnerability/GO-2026-6283"}],"summary":"Mattermost doesn't enforce PermissionInviteUser when setting AllowOpenInvite or AllowedDomains during team creation in github.com/mattermost/mattermost-server"}