CVE-2026-86494
HighCVSS 7.7Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
In JetBrains YouTrack before 2026.2.18634, cloning a whiteboard allowed unauthorized changes to links on inaccessible issues.
Risk Assessment
The risk is unauthorized modification of links to issues that the user cannot access, potentially leading to confidentiality and integrity breaches.
Recommendation
Update YouTrack to 2026.2.18634 or later. Also monitor access permissions to issues.
Other vulnerabilities in YouTrack
See all- CVE-2026-75045Critical
In JetBrains YouTrack before 2025.3.156085, 2026.1.13913, 2026.2.18112 an unauthenticated attacker could download database backups via shared draft signature
- CVE-2026-86498High
In JetBrains YouTrack before 2025.3.160480 and 2026.1.14047, PUT requests on link sub-resources allowed modification of linked entities without update permission.
- CVE-2026-86492High
In JetBrains YouTrack before 2026.2.18634, a shared token cache allowed cross-tenant theft of GitHub App installation tokens.
- CVE-2026-49370Low
In JetBrains YouTrack before version 2026.1.13162, an information disclosure vulnerability was possible on fetchApp requests, allowing attackers to access unauthorized data.
- CVE-2026-49369Medium
A vulnerability was found in JetBrains YouTrack before version 2026.1.13162 that allows information disclosure on the Users and Groups pages.
Original NVD description (English source)
In JetBrains YouTrack before 2026.2.18634 cloning a whiteboard allowed unauthorized changes to links on inaccessible issues
Vulnerability data from NVD (NIST) · CISA KEV · EPSS