CVE-2026-59791 Details
Description
In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible
A CSS injection vulnerability has been identified in JetBrains YouTrack versions prior to 2026.2.17012. This issue arises from improper handling of content in Mermaid diagrams, allowing malicious users to inject and execute harmful CSS.
Users can update to YouTrack version 2026.2.17012 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 10, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.jetbrains.com/privacy-security/issues-fixed/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1021 | Improper Restriction of Rendered UI Layers or Frames | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| jetbrains youtrack | < 2026.2.17012 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 10, 2026 | Initial Analysis | [email protected] |
| Jul 10, 2026 | CVE Modified | CISA-ADP |
| Jul 10, 2026 | New CVE Received | [email protected] |