CVE-2026-86494: JetBrains Youtrack

High severity, CVSS 7.7. EPSS: 0.3% chance of exploitation in the next 30 days.

In JetBrains YouTrack before 2026.2.18634 cloning a whiteboard allowed unauthorized changes to links on inaccessible issues

Affected products

• JetBrains Youtrack: before 2026.2.18634 (fixed in 2026.2.18634)

Published 2026-09-07. Last modified 2026-09-08.