# CVE-2026-103492: JetBrains YouTrack denial of service via crafted PSD attachments

Source: https://junglewise.ai/threats/cve-2026-103492-in-jetbrains-youtrack-before-2026-2-19422-dos-attack-was  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-01. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-103492 · Severity: medium · CVSS 6.5 · Published 2026-10-01

JetBrains YouTrack is an issue tracking and project management platform used by development teams. A denial of service vulnerability allows attackers to crash or freeze the service by uploading specially crafted PSD (Photoshop) image files as attachments, potentially disrupting team collaboration and productivity.

Technologies: [Jetbrains YouTrack](https://junglewise.ai/threats/technologies/youtrack). Vendors: [Jetbrains](https://junglewise.ai/threats/vendors/jetbrains).

## 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

## References

- [https://www.jetbrains.com/privacy-security/issues-fixed/](https://www.jetbrains.com/privacy-security/issues-fixed/)

## Related threats

- [JetBrains YouTrack missing authorization in VCS hosting configuration](https://junglewise.ai/threats/cve-2026-123332-in-jetbrains-youtrack-before-2026-2-19562-missing-authorization)
- [JetBrains YouTrack article visibility restriction bypass](https://junglewise.ai/threats/cve-2026-123331-in-jetbrains-youtrack-before-2026-2-19197-article-editors-could)
- [JetBrains YouTrack missing authorization in issue visibility settings](https://junglewise.ai/threats/cve-2026-123330-in-jetbrains-youtrack-before-2026-2-19562-missing-authorization)
- [JetBrains YouTrack missing authorization in TeamCity integration](https://junglewise.ai/threats/cve-2026-123329-in-jetbrains-youtrack-before-2026-2-19562-missing-authorization)
- [JetBrains YouTrack app permission bypass privilege escalation](https://junglewise.ai/threats/cve-2026-123328-in-jetbrains-youtrack-before-2026-2-19656-app-permission-bypass)