Stored XSS Vulnerability in JetBrains YouTrack
CVE-2026-75048

8.2HIGH

Key Information:

Vendor

Jetbrains
Status
Youtrack
Vendor
CVE Published:
17 August 2026

What is CVE-2026-75048?

A stored cross-site scripting (XSS) vulnerability was identified in JetBrains YouTrack versions prior to 2026.2.18068. This flaw allows an attacker to inject malicious scripts through the fenced code-block language label, which may lead to unauthorized actions and data exposure when such content is rendered in a user's session. Users are encouraged to upgrade to the latest version to mitigate this risk and enhance their platform's security.

Affected Version(s)

YouTrack 0 < 2026.2.18068

References

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

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.