SB2026051259 - Authentication bypass in JetBrains TeamCity
Published: May 12, 2026
Security Bulletin ID
SB2026051259
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Missing Authentication for Critical Function (CVE-ID: CVE-2026-44413)
CWE-ID: CWE-306 - Missing Authentication for Critical Function
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to expose server API to unauthorized access.
The vulnerability exists due to missing authentication for a critical function in the server API when handling requests from authenticated users. A remote user can access the exposed API to expose server API to unauthorized access.
Remediation
Install update from vendor's website.