Quick answers
- Is CVE-2026-123325 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-123325 being exploited in the wild.
- How severe is CVE-2026-123325?
- High severity, with a CVSS score of 7.1, published 6 November 2026.
- Which products and versions are affected?
- Jetbrains YouTrack before 2025.3.170763, 2026.1.14150, 2026.2.19656.
- Is there a fix for CVE-2026-123325?
- Yes: fixed in YouTrack 2025.3.170763, 2026.1.14150, 2026.2.19656. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-123325 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-123325?
- 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 2025.3.170763, 2026.1.14150, 2026.2.19656
Technical details
An insufficient isolation vulnerability in YouTrack's plugin sandbox allows inclusion of untrusted remote code. The vulnerability affects the plugin execution environment, potentially via network-accessible plugin loading mechanisms. An attacker with network access to a YouTrack instance could exploit this to execute arbitrary code with YouTrack's privileges.
Affected products
- JetBrains YouTrack before 2025.3.170763, 2026.1.14150, 2026.2.19656
Timeline
- 2026-11-06: disclosed