---
id: "CVE-2026-123329"
page: "https://infrastack.ai/live/CVE-2026-123329"
kind: "vulnerability"
aliases: ["CVE-2026-123329"]
title: "JetBrains YouTrack: TeamCity integration leaks other projects' actions"
severity: "medium"
cvss: 5.4
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["jetbrains", "other", "self-hosted", "teamcity", "youtrack"]
not_affected_if: ["youtrack-2026.2.19562-or-later"]
published_at: "2026-11-06T11:17:13+00:00"
first_seen_at: "2026-11-06T11:41:27+00:00"
updated_at: "2026-11-06T11:42:30+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123329", "first_seen_at": "2026-11-06T11:41:27+00:00"}]
exploit_sources: []
---

# JetBrains YouTrack: TeamCity integration leaks other projects' actions

Link for people: https://infrastack.ai/live/CVE-2026-123329 (this .md is for agents)

JetBrains YouTrack before 2026.2.19562 has a missing authorization check in its TeamCity integration. An attacker can read actions belonging to other projects.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the YouTrack version, for example in the admin panel or with the server's about page.
- Check whether the TeamCity integration is enabled in YouTrack.

## Fix

- Move YouTrack to `2026.2.19562` or later.

## Timeline

- 2026-11-06T11:41:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-123329

## From the sources

In JetBrains YouTrack before 2026.2.19562 missing authorization in TeamCity integration allowed disclosure of other projects' actions

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_