CVE-2026-59791

EUVD-2026-42909
In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.5 LOW
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
jetbrainsyoutrack
𝑥
< 2026.2.17012
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.jetbrains.com/privacy-security/issues-fixed/