CVE-2026-86494: CWE-862 in JetBrains YouTrack
CVE-2026-86494 is a high-severity vulnerability in JetBrains YouTrack before version 2026.2.18634. It involves improper authorization (CWE-862) where cloning a whiteboard allowed unauthorized users with limited privileges to modify links on issues they should not have access to. This could lead to unauthorized integrity violations without impacting confidentiality or availability.
AI Analysis
Technical Summary
This vulnerability in JetBrains YouTrack (prior to 2026.2.18634) is classified as CWE-862 (Improper Authorization). It allows users with limited privileges (PR:L) to clone a whiteboard and thereby make unauthorized changes to links associated with issues that are otherwise inaccessible to them. The CVSS 3.1 score is 7.7 (high), reflecting network attack vector, low attack complexity, no user interaction, and a scope change with integrity impact but no confidentiality or availability impact. No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
An attacker with limited privileges can alter links on issues they cannot normally access by cloning a whiteboard, resulting in unauthorized integrity modifications. There is no impact on confidentiality or availability. This could lead to data integrity issues within the YouTrack issue tracking system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to whiteboard cloning functionality to trusted users only, if possible, and monitor for unusual changes to issue links.
CVE-2026-86494: CWE-862 in JetBrains YouTrack
Description
CVE-2026-86494 is a high-severity vulnerability in JetBrains YouTrack before version 2026.2.18634. It involves improper authorization (CWE-862) where cloning a whiteboard allowed unauthorized users with limited privileges to modify links on issues they should not have access to. This could lead to unauthorized integrity violations without impacting confidentiality or availability.
CVSS v3.1
Score 7.7high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in JetBrains YouTrack (prior to 2026.2.18634) is classified as CWE-862 (Improper Authorization). It allows users with limited privileges (PR:L) to clone a whiteboard and thereby make unauthorized changes to links associated with issues that are otherwise inaccessible to them. The CVSS 3.1 score is 7.7 (high), reflecting network attack vector, low attack complexity, no user interaction, and a scope change with integrity impact but no confidentiality or availability impact. No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
An attacker with limited privileges can alter links on issues they cannot normally access by cloning a whiteboard, resulting in unauthorized integrity modifications. There is no impact on confidentiality or availability. This could lead to data integrity issues within the YouTrack issue tracking system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to whiteboard cloning functionality to trusted users only, if possible, and monitor for unusual changes to issue links.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-07T16:13:38.206Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9ee859acd9273b49f0e41e
Added to database: 09/07/2026, 16:37:45 UTC
Last enriched: 09/07/2026, 16:52:29 UTC
Last updated: 09/08/2026, 00:20:21 UTC
Views: 9
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