CVE-2026-59791
LOW severity · CVSS 3.5 · CWE-1021
3.5CVSS LOW
Summary
In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
Confidentiality impactNone
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.