Quick answers
- Is CVE-2026-123330 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-123330 being exploited in the wild.
- How severe is CVE-2026-123330?
- Medium severity, with a CVSS score of 5.4, published 6 November 2026.
- Which products and versions are affected?
- Jetbrains YouTrack before 2026.2.19562.
- Is there a fix for CVE-2026-123330?
- Yes: fixed in YouTrack 2026.2.19562. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-123330 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-123330?
- Check whether you run Jetbrains YouTrack at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: YouTrack 2026.2.19562
Technical details
A missing authorization check in YouTrack's issue visibility settings API allows authenticated users with read-only permissions to change issue visibility without proper privilege validation. The vulnerability requires network access and valid read-only credentials; no further user interaction is needed. An attacker gains the ability to alter issue visibility, potentially escalating access to sensitive issue metadata.
Affected products
- JetBrains YouTrack before 2026.2.19562
Timeline
- 2026-11-06: disclosed