CVE-2026-86491 in YouTrack

Summary

by MITRE • 09/07/2026

In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

• Responsible: JetBrains
• Reservation: 09/07/2026
• Disclosure: 09/07/2026
• Moderation: accepted
• Entry: VDB-399646
• CPE: ready
• CWE: CWE-79 (confirmed)
• CVSS: 3.5 (CNA)
• EPSS: 0.00000
• KEV: no
• Activities: very low
• Sector: Hostingprovider, Insurance, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-86491
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-86491
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-86491/