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LOW · 3.5

CVE-2026-59791

In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible

Vulnerability Description

In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible

CVSS Score

3.5

LOW

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
JetbrainsYoutrack< 2026.2.17012

Related Weaknesses (CWE)

CWE-1021

References

FAQ

What is CVE-2026-59791?

CVE-2026-59791 is a vulnerability with a CVSS score of 3.5 (LOW). In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible

How severe is CVE-2026-59791?

CVE-2026-59791 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-59791?

Check the references section above for vendor advisories and patch information. Affected products include: Jetbrains Youtrack.