CVE-2026-103493

In JetBrains YouTrack before 2026.2.19422 stored XSS via Mermaid and LaTeX content was possible

  • Published Oct 1, 2026
  • CVSS 8.1 high
  • 0.2% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

CVE-2026-103493 at the National Vulnerability Database