External Control of File Name or Path in TeamCity - CVE-2026-59793
Published: August 17, 2026
Vulnerability identifier: #VU143845
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59793
CWE-ID: CWE-73
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to access arbitrary files.
The vulnerability exists due to external control of file name or path in the Perforce VCS integration when processing repository-related input. A remote user can supply a specially crafted path to access arbitrary files.
Affected software
TeamCity
How to mitigate CVE-2026-59793
Install security update from vendor's website.
TeamCity - update to 2026.1.2