CVE-2026-111094 JetBrains TeamCity - Remote Code Execution

JetBrains TeamCity < 2026.2, 2026.1.4, 2025.11.8 contains a remote code execution caused by whitelist bypass in the build messages protocol, letting remote attackers execute arbitrary code, exploit requires network access.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Undefined
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
15 October 2026
Updated
16 October 2026
Weakness
CWE-502

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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