CVE-2026-86494: CWE-862 in JetBrains YouTrack
Description
In JetBrains YouTrack before 2026.2.18634 cloning a whiteboard allowed unauthorized changes to links on inaccessible issues
CVSS v3.1
Score 7.7high
Affected software
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
CVE-2026-86494 is a vulnerability in JetBrains YouTrack prior to version 2026.2.18634 where cloning a whiteboard permits unauthorized modification of links on issues that are otherwise inaccessible to the user. The flaw is classified under CWE-862 (Missing Authorization) and has a CVSS 3.1 score of 7.7, indicating a high severity with network attack vector, low attack complexity, requiring low privileges but no user interaction, and causing a scope change with no confidentiality or availability impact but high integrity impact.
Potential Impact
An attacker with low privileges can exploit this vulnerability remotely without user interaction to alter links on issues they are not authorized to access, compromising data integrity within the YouTrack system. There is no direct confidentiality or availability impact reported.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.18634. Users should upgrade to this version or later to remediate the vulnerability. No further mitigation guidance is provided in the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-8w82-5pw4-6hqw
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86494"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9f9113acd9273b49ff2bc0
Added to database: 09/08/2026, 04:37:39 UTC
Last enriched: 09/08/2026, 04:52:31 UTC
Last updated: 10/22/2026, 13:15:24 UTC
Views: 83
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