CVE-2026-86482: CWE-266 in JetBrains YouTrack
Description
In JetBrains YouTrack before 2026.2.18634 unchecked group membership changes allowed privilege escalation
CVSS v3.1
Score 8.8high
Affected software
pkg:github/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
CVE-2026-86482 is a high-severity vulnerability in JetBrains YouTrack before version 2026.2.18634. The issue arises from unchecked changes to group memberships, which can be exploited to escalate privileges. The CVSS 3.1 score is 8.8, indicating a network attack vector with low attack complexity, requiring privileges but no user interaction, and resulting in high impact on confidentiality, integrity, and availability. No patch links or vendor advisories are provided in the input, and the product is not a cloud service.
Potential Impact
Successful exploitation allows an attacker with some privileges to escalate their access rights, potentially gaining full control over the affected YouTrack instance. This can lead to unauthorized data access, modification, or disruption of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to trusted users and monitor for suspicious group membership changes.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-c6qc-2wj6-prrp
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86482"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9f9117acd9273b49ff2d18
Added to database: 09/08/2026, 04:37:43 UTC
Last enriched: 09/08/2026, 04:52:09 UTC
Last updated: 10/23/2026, 01:15:27 UTC
Views: 82
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