Quick answers
- Is CVE-2026-103492 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103492 being exploited in the wild.
- How severe is CVE-2026-103492?
- Medium severity, with a CVSS score of 6.5, published 1 October 2026.
- Which products and versions are affected?
- Jetbrains YouTrack before 2026.2.19422.
- Is there a fix for CVE-2026-103492?
- 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-2026-103492 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-103492?
- 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 exists in YouTrack's attachment handling, specifically in PSD file parsing. An unauthenticated attacker can trigger a denial of service condition by uploading a malicious PSD attachment, which causes excessive resource consumption or an application crash. The attack requires only network access and the ability to attach files to issues.
Affected products
- JetBrains YouTrack before 2026.2.19422
Timeline
- 2026-10-01: disclosed