CVE-2026-100254 JetBrains TeamCity - Command Injection

JetBrains TeamCity before 2026.2, 2026.1.4, and 2025.11.8 contains a command injection caused by CRLF injection in Pipeline Git connection settings, letting authenticated users execute commands on Windows servers, exploit requires authentication.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.47% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
30 September 2026
Updated
15 October 2026
Weakness
CWE-78

Vendor fix

Update to version 2026.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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