CVE-2026-86491
In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization...
In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads
- Record
CVE-2026-86491- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-72507
In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads
- Record
EUVD-2026-72507- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-m4mg-c2jx-4939
In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization...
In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads
- Record
GHSA-m4mg-c2jx-4939- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads
- Record
CVE-2026-86491- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-86491 is a low vulnerability (CVSS 3.5) in Jetbrains Youtrack, published September 7, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. No source names a fixed version.