Stored XSS Vulnerability in JetBrains YouTrack Affects Agile Board Functionality
CVE-2026-86483

5.4MEDIUM

Key Information:

Vendor

Jetbrains
Status
Youtrack
Vendor
CVE Published:
7 September 2026

What is CVE-2026-86483?

A stored Cross-Site Scripting (XSS) vulnerability exists in JetBrains YouTrack prior to version 2026.2.18634, which allows an attacker to inject malicious scripts into a custom field of Agile board cards. This vulnerability can lead to unauthorized access and manipulation of user data, posing significant security risks. Organizations using affected versions should upgrade to the latest release to mitigate this risk.

Affected Version(s)

YouTrack 0 < 2026.2.18634

References

https://www.jetbrains.com/privacy-security/issues-fixed/

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.