{"id":"GHSA-xpg8-8xpv-948p","summary":"Mattermost does not enforce MFA on WebSocket connections","details":"Mattermost versions \u003c 11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events.","aliases":["CVE-2025-55070","GO-2025-4128"],"modified":"2025-11-17T19:58:36.335728Z","published":"2025-11-14T09:30:27Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2025-11-17T13:41:39Z","nvd_published_at":"2025-11-14T08:15:45Z","cwe_ids":["CWE-306"],"severity":"MODERATE"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55070"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/7d8b7b5e4a6076b2f7c87606883c417f9a610df5"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"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":"0"},{"fixed":"11.1.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/11/GHSA-xpg8-8xpv-948p/GHSA-xpg8-8xpv-948p.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":"0"},{"fixed":"8.0.0-20250912063506-7d8b7b5e4a60"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/11/GHSA-xpg8-8xpv-948p/GHSA-xpg8-8xpv-948p.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}