Authorization Bypass in JetBrains TeamCity Affects Build Configuration Management
CVE-2026-28195

4.3MEDIUM

Key Information:

Vendor

Jetbrains
Status
Teamcity
Vendor
CVE Published:
25 February 2026

What is CVE-2026-28195?

A significant vulnerability in JetBrains TeamCity versions prior to 2025.11.3 allows unauthorized project developers to manipulate build configurations by adding arbitrary parameters, potentially compromising the integrity of the build process. This loophole underscores the importance of stringent access controls to prevent unauthorized modifications that can lead to vulnerabilities within the development lifecycle.

Affected Version(s)

TeamCity 0 < 2025.11.3

References

https://www.jetbrains.com/privacy-security/issues-fixed/

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.