CVE-2026-100253High· 8.8▾ TwilightIn 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
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
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
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-100254High· 8.8In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 authenticated users could execute commands on Windows servers via CRLF injection in Pipeline Git connection settings
CVE-2026-100255High· 8.1In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 administrator account takeover was possible via password reset
CVE-2026-63077Critical· 9.8In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol
CVE-2026-100279Medium· 6.5In JetBrains YouTrack before 2026.2.19197 changing an integration URL exposed its stored credentials
CVE-2026-100277High· 8.9In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature
CVE-2026-100276Medium· 5.9In JetBrains YouTrack before 2026.2.19197 guest users could remove a workflow action's visibility restriction and run the action