CVE-2026-86495: CWE-862 in JetBrains YouTrack
Description
In JetBrains YouTrack before 2026.2.18687 missing permission checks allowed creating knowledge base articles in inaccessible projects
CVSS v3.1
Score 6.5medium
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-2026-86495 is a permission check bypass vulnerability in JetBrains YouTrack versions prior to 2026.2.18687. This flaw permits users with limited privileges to create knowledge base articles in projects that are otherwise inaccessible to them. The issue stems from missing permission validations during the creation process of knowledge base articles.
Potential Impact
The vulnerability allows unauthorized creation of knowledge base articles in restricted projects, potentially leading to unauthorized information injection or manipulation within those projects. The CVSS score of 6.5 indicates a moderate severity with a high impact on integrity but no impact on confidentiality or availability.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.18687. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-gf9f-9v25-gm42
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86495"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9f9113acd9273b49ff2bbe
Added to database: 09/08/2026, 04:37:39 UTC
Last enriched: 09/08/2026, 05:08:26 UTC
Last updated: 10/23/2026, 01:15:27 UTC
Views: 72
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