# CVE-2026-103495: JetBrains YouTrack missing authorization in translation catalog reload

Source: https://junglewise.ai/threats/cve-2026-103495-in-jetbrains-youtrack-before-2026-2-19422-missing-authorisation  
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-2026-103495 · Severity: medium · CVSS 4.3 · Published 2026-10-01

JetBrains YouTrack is a project management and issue tracking platform used by development teams. A missing authorization check allows unauthenticated or low-privilege users to reload translation catalogs, potentially disrupting service functionality or exposing internal application strings. This could interfere with normal operations or reveal application internals to attackers.

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

## 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

## 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)