YouTrack vulnerability

In JetBrains YouTrack before 2026.2.18634 unchecked group membership changes allowed privilege escalation

Published 7 Sep 2026Updated 9 Sep 20261 sources
CVSS 8.8

What happened

In JetBrains YouTrack before 2026.2.18634 unchecked group membership changes allowed privilege escalation

Affected versions

YouTrack: before 2026.2.18634 (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.