{"id":"EUVD-2025-186556","revision":"ad84a5dd047848f19bd4193b3e965157","records":[{"revision":"ad84a5dd047848f19bd4193b3e965157","observedAt":"2026-11-01T00:11:08.14+00:00","statement":{"source":"euvd","id":"EUVD-2025-186556","aliases":["CVE-2025-55070","GHSA-xpg8-8xpv-948p"],"title":"Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events","description":"Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5,"severity":null}],"references":["https://mattermost.com/security-updates"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-186556","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Nov 14, 2025, 8:02:24 AM","dateUpdated":"Nov 14, 2025, 3:47:52 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2025-186556","identifiers":["EUVD-2025-186556","CVE-2025-55070","GHSA-xpg8-8xpv-948p"]},"retained":false,"historicalAffected":[]}],"coverage":[]}