CVE-2026-100264: JetBrains Youtrack

Low severity, CVSS 2.7. EPSS: 0.2% chance of exploitation in the next 30 days.

In JetBrains YouTrack before 2026.2.18991 stored SMTP server credentials could be disclosed by changing the server host

Affected products

• JetBrains Youtrack: before 2026.2.18991 (fixed in 2026.2.18991)

Published 2026-09-30. Last modified 2026-10-02.