JetBrainsCVE-2026-100253
JetBrains TeamCity: code execution
High8.8CVE-2026-100253 · Published Sep 30, 2026 · updated Oct 1, 2026
In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 sandbox escape leading to code execution was possible via the versioned settings Kotlin DSL
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| TeamCity Product | < 2026.2, 2026.1.4, 2025.11.8 | 2026.2, 2026.1.4, 2025.11.8 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-184
More JetBrains advisories
All JetBrains| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 30 | JetBrains YouTrack: cross-site scripting | Medium6.9 | 2026.2.19197 |
| Sep 30 | JetBrains YouTrack: improper authorization | Medium5.9 | 2026.2.19197 |
| Sep 30 | JetBrains YouTrack: improper authorization | High8.9 | 2026.2.19197 |
| Sep 30 | JetBrains YouTrack: improper authorization | Medium4.9 | 2026.2.19197 |
| Sep 30 | JetBrains YouTrack: server-side request forgery | Medium6.5 | 2026.2.19197 |
| Sep 30 | JetBrains YouTrack: missing authorization | Low3.1 | 2026.2.19197 |