CVE-2026-86499: CWE-862 in JetBrains YouTrack
Description
CVE-2026-86499 is a vulnerability in JetBrains YouTrack before version 2026.1.14047 where predefined search fields exposed all group names to any user regardless of their visibility permissions. This issue relates to improper access control (CWE-862). The vulnerability has a medium severity with a CVSS score of 4.3 and does not impact integrity or availability. No known exploits are reported in the wild. A fix is available in version 2026.1.14047.
CVSS v3.1
Score 4.3medium
Affected software
JetBrains
YouTrack
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-86499) in JetBrains YouTrack versions prior to 2026.1.14047 allows any user to see all group names via predefined search fields, bypassing intended visibility restrictions. The issue is classified under CWE-862 (Improper Authorization). The CVSS 3.1 base score is 4.3, reflecting a network attack vector with low complexity and requiring low privileges but no user interaction. Confidentiality impact is low, with no impact on integrity or availability. The vendor has released version 2026.1.14047 to address this issue.
Potential Impact
The vulnerability leaks group names to unauthorized users, potentially exposing sensitive organizational structure information. However, it does not allow modification of data or disruption of service. The confidentiality impact is limited to information disclosure of group names only.
Mitigation Recommendations
Upgrade JetBrains YouTrack to version 2026.1.14047 or later, where this vulnerability is fixed. No additional mitigation is required once the official fix is applied.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-07T16:13:39.838Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9ee85bacd9273b49f0e444
Added to database: 09/07/2026, 16:37:47 UTC
Last enriched: 09/15/2026, 01:18:57 UTC
Last updated: 10/21/2026, 13:22:15 UTC
Views: 91
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