Description
In JetBrains YouTrack before 2026.2.18634, insufficient validation of role assignments allowed privilege escalation
Published: 2026-09-07
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Privilege Escalation
Action: Immediate Patch
AI Analysis

Impact

JetBrains YouTrack versions before 2026.2.18634 exhibit insufficient validation of role assignments, allowing an attacker to alter role assignments and elevate privileges. This is a privilege control failure and is classified as CWE-266. The CVE description does not explicitly state confidentiality or integrity impacts; any such consequences are inferred and not documented in the official data.

Affected Systems

The affected product is JetBrains YouTrack for any build earlier than version 2026.2.18634. Users of those older releases lack the fix that enforces proper group membership checks.

Risk and Exploitability

The CVSS score of 8.8 indicates high severity, while the EPSS score is below 1% and the vulnerability is not listed in the CISA KEV catalog. The description does not specify an exploitation method or prerequisites, so definitive attack vectors are unknown from the data provided.

Generated by OpenCVE AI on September 22, 2026 at 12:53 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update JetBrains YouTrack to version 2026.2.18634 or newer to enable proper group membership validation.
  • Limit the ability to modify role assignments to trusted administrators by reviewing and tightening user permissions.
  • Regularly audit group membership changes for signs of unauthorized modifications and verify that the updated system enforces proper checks.

Generated by OpenCVE AI on September 22, 2026 at 12:53 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 22 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Title Unchecked Group Membership Changes Allow Privilege Escalation in JetBrains YouTrack

Tue, 22 Sep 2026 10:00:00 +0000

Type Values Removed Values Added
Description In JetBrains YouTrack before 2026.2.18634 unchecked group membership changes allowed privilege escalation In JetBrains YouTrack before 2026.2.18634, insufficient validation of role assignments allowed privilege escalation

Tue, 08 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 07 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
Title Unchecked Group Membership Changes Allow Privilege Escalation in JetBrains YouTrack

Mon, 07 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains youtrack
Vendors & Products Jetbrains
Jetbrains youtrack

Mon, 07 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description In JetBrains YouTrack before 2026.2.18634 unchecked group membership changes allowed privilege escalation
Weaknesses CWE-266
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

Jetbrains Youtrack
cve-icon MITRE

Status: PUBLISHED

Assigner: JetBrains

Published:

Updated: 2026-09-22T09:50:37.407Z

Reserved: 2026-09-07T16:13:34.718Z

Link: CVE-2026-86482

cve-icon Vulnrichment

Updated: 2026-09-08T10:33:28.290Z

cve-icon NVD

Status : Deferred

Published: 2026-09-07T17:17:26.383

Modified: 2026-09-22T10:17:09.857

Link: CVE-2026-86482

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T13:00:14Z

Weaknesses
  • CWE-266

    Incorrect Privilege Assignment