JetBrainsCVE-2026-103493
JetBrains YouTrack: cross-site scripting
High8.1CVE-2026-103493 · Published Oct 1, 2026
In JetBrains YouTrack before 2026.2.19422 stored XSS via Mermaid and LaTeX content was possible
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| YouTrack Product | < 2026.2.19422 | 2026.2.19422 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-79
More JetBrains advisories
All JetBrains| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Oct 1 | JetBrains YouTrack: missing authorization | Medium4.3 | 2026.2.19422 |
| Oct 1 | JetBrains YouTrack: insecure direct object reference | Medium5.4 | 2026.2.19422 |
| Oct 1 | JetBrains YouTrack: server-side request forgery | Medium5.5 | 2026.2.19422 |
| Oct 1 | JetBrains YouTrack: cross-site scripting | Low2.0 | 2026.2.19422 |
| Oct 1 | JetBrains YouTrack: privilege escalation | High7.2 | 2026.2.19422 |
| Oct 1 | JetBrains YouTrack: insecure direct object reference | Medium6.5 | 2026.2.19422 |