Security Advisory

CVE-2026-86478

CVSS 9.8
CRITICAL

Vulnerability Description

In JetBrains YouTrack before 2025.3.161254, 2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address
Published Date 2026-09-07T17:17:25.920
Data Feed NIST National Vulnerability Database