{"$ref":"https://www.cert.ssi.gouv.fr/openapi.json","affected_systems":[{"description":"Mattermost Server versions 10.11.x ant\u00e9rieures \u00e0 10.11.17","product":{"name":"Mattermost Server","vendor":{"name":"Mattermost","scada":false}}},{"description":"Mattermost Server versions 11.5.x ant\u00e9rieures \u00e0 11.5.5","product":{"name":"Mattermost Server","vendor":{"name":"Mattermost","scada":false}}},{"description":"Mattermost Server versions 11.6.x ant\u00e9rieures \u00e0 11.6.2","product":{"name":"Mattermost Server","vendor":{"name":"Mattermost","scada":false}}}],"affected_systems_content":"","content":"## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l'\u00e9diteur pour l'obtention des correctifs (cf. section Documentation).","cves":[],"links":[],"reference":"CERTFR-2026-AVI-0598","revisions":[{"description":"Version initiale","revision_date":"2026-05-15T00:00:00.000000"}],"risks":[{"description":"Non sp\u00e9cifi\u00e9 par l'\u00e9diteur"}],"summary":"De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Mattermost Server. Elles permettent \u00e0 un attaquant de provoquer un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l'\u00e9diteur.","title":"Multiples vuln\u00e9rabilit\u00e9s dans Mattermost Server","vendor_advisories":[{"published_at":"2026-05-13","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00661","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-05-13","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00656","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-05-13","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00649","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-05-13","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00616","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-05-13","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00655","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-05-13","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00665","url":"https://mattermost.com/security-updates/"}]}