What’s Vulnerable › Vulnerabilities
CVE-2026-100253
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-30 · updated 2026-10-06
- Weakness: CWE-184
Description
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 products
- JetBrains TeamCity: before 2025.11.8; from 2026.1 before 2026.1.4 — fixed in 2025.11.8, 2026.1.4
How to fix
Upgrade to a fixed version: JetBrains TeamCity 2025.11.8, 2026.1.4. Check the vendor advisory for mitigations.
References
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