Description
In JetBrains YouTrack before 2026.2.19422 cSS injection was possible in Mermaid diagrams via configuration directives
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| JetBrains | YouTrack | < 2026.2.19422 | 2026.2.19422 |
Advisories 1
- WID-SEC-2026-4399 JetBrains You Track: Schwachstelle ermöglicht Darstellen falscher Informationen BSI CERT-Bund (WID) · Nov 8, 2026