CVE-2026-59791

Low

Description

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

SeverityLow
CVSS3.5
Exploit probability—
ProductJetbrains Youtrack
PublishedJul 10, 2026
First seenJul 10, 2026
Weakness typeCWE-1021CWE-1021

How to fix

Update
  • jetbrains youtrack2026.2.17012 or later

Affected products

ProductAffected versionsFixed in
jetbrains youtrackv < 2026.2.170122026.2.17012

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

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