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CVE-2026-86493: CWE-863 in JetBrains YouTrack

0
Medium
VulnerabilityCVE-2026-86493gcveosvghsa-vqpp-qf88-72p9cve-2026-86493ghsacwe-863
Published: 09/07/2026 (09/07/2026, 16:26:46 UTC)
Source: GCVE Database
Vendor/Project: JetBrains
Product: YouTrack

Description

In JetBrains YouTrack before 2026.2.18634 improper permission checks allowed read-only users to create and modify whiteboard cards

CVSS v3.1

Score 6.5medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected software

GitHub Actionsmore threats →ai
jetbrains/YouTrack
pkg:github/jetbrains/YouTrack
Affected versions
<2026.2.18634

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/08/2026, 05:08:59 UTC

Technical Analysis

CVE-2026-86493 is a permission validation vulnerability in JetBrains YouTrack affecting versions prior to 2026.2.18634. The flaw permits users assigned read-only access to bypass intended restrictions and create or modify whiteboard cards, violating expected access controls. This issue is classified under CWE-863 (Improper Authorization).

Potential Impact

The vulnerability enables unauthorized modification of whiteboard cards by users who should only have read-only access. While it does not impact confidentiality or availability, it can lead to unauthorized changes, affecting the integrity of whiteboard data within YouTrack.

Mitigation Recommendations

A fix is available in JetBrains YouTrack version 2026.2.18634. Users should upgrade to this version or later to remediate the issue. No additional mitigation steps are indicated.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-vqpp-qf88-72p9
Osv Schema Version
1.4.0
Aliases
["CVE-2026-86493"]
Database Specific Severity
MODERATE
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a9f9112acd9273b49ff2b96

Added to database: 09/08/2026, 04:37:38 UTC

Last enriched: 09/08/2026, 05:08:59 UTC

Last updated: 10/21/2026, 13:22:15 UTC

Views: 66

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