CVE-2026-103494: CWE-266 in JetBrains YouTrack
In JetBrains YouTrack before 2026.2.19422 privilege escalation was possible via user group membership changes
AI Analysis
Technical Summary
This vulnerability (CWE-266) in JetBrains YouTrack allows privilege escalation via manipulation of user group memberships. It affects all versions prior to 2026.2.19422. The CVSS 3.1 vector indicates the attack requires network access, high attack complexity, and privileges, but no user interaction. Successful exploitation impacts confidentiality, integrity, and availability.
Potential Impact
An attacker with some level of privileges can escalate their access by changing user group memberships, potentially gaining higher privileges than intended. This could lead to unauthorized access to sensitive information, modification of data, or disruption of service within YouTrack.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.19422. Users should upgrade to this version or later to remediate the vulnerability. Since no vendor advisory content is provided, check JetBrains official resources for the patch and further guidance.
CVE-2026-103494: CWE-266 in JetBrains YouTrack
Description
In JetBrains YouTrack before 2026.2.19422 privilege escalation was possible via user group membership changes
CVSS v3.1
Score 6.6medium
Affected software
JetBrains
YouTrack
pkg:maven/com.jetbrains/youtrackRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-266) in JetBrains YouTrack allows privilege escalation via manipulation of user group memberships. It affects all versions prior to 2026.2.19422. The CVSS 3.1 vector indicates the attack requires network access, high attack complexity, and privileges, but no user interaction. Successful exploitation impacts confidentiality, integrity, and availability.
Potential Impact
An attacker with some level of privileges can escalate their access by changing user group memberships, potentially gaining higher privileges than intended. This could lead to unauthorized access to sensitive information, modification of data, or disruption of service within YouTrack.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.19422. Users should upgrade to this version or later to remediate the vulnerability. Since no vendor advisory content is provided, check JetBrains official resources for the patch and further guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-30T17:07:14.496Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abe7488a43b0b3b89bd1c60
Added to database: 10/01/2026, 14:56:08 UTC
Last enriched: 10/01/2026, 15:16:47 UTC
Last updated: 10/01/2026, 22:25:59 UTC
Views: 5
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