Missing Authorization in TeamCity - CVE-2026-59796
Published: August 17, 2026
Vulnerability identifier: #VU143841
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59796
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to modify pipelines.
The vulnerability exists due to improper permission checks in pipeline modification functionality when handling pipeline modification requests. A remote user can send a crafted request to modify pipelines.
Affected software
TeamCity
How to mitigate CVE-2026-59796
Install security update from vendor's website.
TeamCity - update to 2026.1.2