vulnerability Multiples vulnérabilités dans les produits Mattermost (22 mai 2026) Multiple vulnerabilities have been discovered in Mattermost products, allowing an attacker to bypass security policies and potentially lead to an unspecified security issue. These vulnerabilities affect various versions of the Mattermost Desktop App and Server. Users are advised to consult the Mattermost security updat… CERT-FR · May 22, 2026 Medium CVE-2026-5139CVE-2026-6062CVE-2026-6517vulnerabilitysecuritypatch