ThreatsCloud & SaaSHighAtlassian Model Context Protocol Server Flaws Enable Unauthenticated Arbitrary File Exfiltration CVE-2026-77248Critical authentication bypass and path traversal vulnerabilities in the Atlassian Model Context Protocol server allow unauthenticated attackers to read and exfiltrate host files.Daniel Okafor·27 Sep 2026, 08:00 IST·8 min read