CVE-2026-103493
High
Description
In JetBrains YouTrack before 2026.2.19422 stored XSS via Mermaid and LaTeX content was possible
SeverityHigh
CVSS8.1
Exploit probability—
Product
Jetbrains Youtrack
PublishedOct 1, 2026
First seenOct 1, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- jetbrains youtrack2026.2.19422 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| jetbrains youtrack | v < 2026.2.19422 | 2026.2.19422 |
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
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.