CVE-2026-100253

TeamCity Sandbox Escape via Kotlin DSL Settings Enables Code Execution

Published Sep 30, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains teamcity
Vendors & Products Jetbrains
Jetbrains teamcity
Type Values Removed Values Added
Title TeamCity Sandbox Escape via Kotlin DSL Settings Enables Code Execution
Type Values Removed Values Added
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
Weaknesses CWE-184
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Oct 1, 2026, 3:55 AM
Reserved
Sep 25, 2026, 5:02 PM
Status
Analyzed
Published
Sep 30, 2026, 4:16 PM
Modified
Oct 6, 2026, 4:40 PM