CVE-2026-86485: JetBrains Youtrack

Low severity, CVSS 3.3. EPSS: 0.2% chance of exploitation in the next 30 days.

In JetBrains YouTrack before 2026.2.18634 iP spoofing via HTTP headers allowed forged Bitbucket webhooks

Affected products

• JetBrains Youtrack: before 2026.2.18634 (fixed in 2026.2.18634)

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