CVE-2026-123329: JetBrains YouTrack · Insecure Direct Object Reference
Affects JetBrains YouTrackSource CVE Database V5
Not known to be exploited · CVSS 5.4 Medium : upgrade to 2026.2.19562 when convenient.
Data as of 6 Nov 2026, 10:50 UTC
Thin evidence
One scorer or none| CNA (JetBrains) | CVSS 3.1 | 5.4 |
|---|
- Patch
- Available – fixed in 2026.2.19562
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade JetBrains YouTrack to 2026.2.19562.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| JetBrainsYouTrack | Affected
| Fixed in
|
AI-suggested
Upgrade JetBrains YouTrack to version 2026.2.19562 or later, where this authorization bypass vulnerability has been fixed. No other mitigation is indicated by the vendor advisory.
Description
CVE-2026-123329 is a medium severity vulnerability in JetBrains YouTrack before version 2026.2.19562. It involves missing authorization checks in the TeamCity integration, which could allow unauthorized users to disclose actions from other projects. The issue is classified as CWE-639, an authorization bypass through user-controlled key. A fix is available in version 2026.2.19562.