CVE-2026-57921: JetBrains Youtrack

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In JetBrains YouTrack before 2026.2.16593 improper access control allowed reading users' private data via the comment templates endpoint

Affected products

• JetBrains Youtrack: before 2026.2.16593 (fixed in 2026.2.16593)

Published 2026-06-26. Last modified 2026-06-27.