{"$ref":"https://www.cert.ssi.gouv.fr/openapi.json","affected_systems":[{"description":"Mattermost Server versions 11.9.x ant\u00e9rieures \u00e0 11.9.2","product":{"name":"Mattermost Server","vendor":{"name":"Mattermost","scada":false}}},{"description":"Mattermost Server versions 11.7.x ant\u00e9rieures \u00e0 11.7.11","product":{"name":"Mattermost Server","vendor":{"name":"Mattermost","scada":false}}},{"description":"Mattermost Server versions 11.10.x ant\u00e9rieures \u00e0 11.10.2","product":{"name":"Mattermost Server","vendor":{"name":"Mattermost","scada":false}}},{"description":"Mattermost Server versions ant\u00e9rieures \u00e0 10.11.23","product":{"name":"Mattermost Server","vendor":{"name":"Mattermost","scada":false}}},{"description":"Mattermost Server versions 11.8.x ant\u00e9rieures \u00e0 11.8.6","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":[{"name":"CVE-2026-91181","url":"https://www.cve.org/CVERecord?id=CVE-2026-91181"}],"links":[],"reference":"CERTFR-2026-AVI-1190","revisions":[{"description":"Version initiale","revision_date":"2026-09-16T00:00:00.000000"}],"risks":[{"description":"Non sp\u00e9cifi\u00e9 par l'\u00e9diteur"},{"description":"Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"}],"summary":"De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Mattermost Server. Elles permettent \u00e0 un attaquant de provoquer une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et 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":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00773","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00761","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00763","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00747","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00726","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00752","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00757","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00756","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00711","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00727","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00764","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00765","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00754","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00758","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00748","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-14","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00702","url":"https://mattermost.com/security-updates/"},{"published_at":"2026-09-15","title":"Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00766","url":"https://mattermost.com/security-updates/"}]}