CVE-2026-100254
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk38th percentile - higher than 38% of all known CVEs
Summary
In JetBrains TeamCity before versions 2026.2, 2026.1.4, and 2025.11.8, authenticated users can execute commands on Windows servers via CRLF injection in Pipeline Git connection settings.
Risk Assessment
An authenticated attacker can achieve remote code execution on Windows servers, potentially leading to full system compromise and takeover of the CI/CD infrastructure.
Recommendation
Immediately upgrade TeamCity to versions 2026.2, 2026.1.4, or 2025.11.8, which contain the fix.
Other vulnerabilities in JetBrains TeamCity
See all- CVE-2026-44413High
In JetBrains TeamCity versions before 2026.1 and 2025.11.5, authenticated users could expose the server API to unauthorized access.
- CVE-2026-63077CriticalActively exploited
In JetBrains TeamCity before versions 2026.1.3 and 2025.11.7, unauthenticated remote code execution is possible via the agent polling protocol.
- CVE-2026-65907Critical
In JetBrains TeamCity before 2026.1.2 and 2025.11.6, code execution in Git VCS roots was possible.
- CVE-2024-27198CriticalActively exploited
In JetBrains TeamCity before 2023.11.4, an authentication bypass vulnerability exists that allows performing admin actions without authorization.
- CVE-2023-42793CriticalActively exploited
In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible.
- CVE-2023-41249Medium
In JetBrains TeamCity versions before 2023.05.3, reflected XSS was possible during copying Build Step.
- CVE-2023-34225Medium
In JetBrains TeamCity versions before 2023.05, a stored XSS vulnerability was present in the NuGet feed page.
- CVE-2023-34220Medium
In JetBrains TeamCity versions before 2023.05, a stored XSS vulnerability was present in the Commit Status Publisher window.
- CVE-2023-34218Critical
In JetBrains TeamCity before version 2023.05, it was possible to bypass permission checks, allowing for the execution of admin actions.
- CVE-2026-106219Medium
JetBrains TeamCity before 2026.2.1 contains a vulnerability due to missing validation of Git submodule URLs, allowing reading local repositories on the server. Attackers can exploit this to access confidential data.
Original NVD description (English source)
In 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
Vulnerability data from NVD (NIST) · CISA KEV · EPSS