Quick answers
- Is CVE-2026-103495 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103495 being exploited in the wild.
- How severe is CVE-2026-103495?
- Medium severity, with a CVSS score of 4.3, published 1 October 2026.
- Which products and versions are affected?
- Jetbrains YouTrack before 2026.2.19422.
- Is there a fix for CVE-2026-103495?
- Yes: fixed in YouTrack 2026.2.19422. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-103495 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-103495?
- 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 2026.2.19422
Technical details
The vulnerability is an authorization bypass in the translation catalog reload endpoint. The missing authorization check allows users without proper permissions to trigger catalog reloading operations. An attacker with network access can exploit this by sending requests to the affected endpoint without authentication or elevated privileges.
Affected products
- JetBrains YouTrack before 2026.2.19422
Timeline
- 2026-10-01: disclosed