Relative Path Traversal in TeamCity - CVE-2025-59456
Published: August 17, 2026
Vulnerability identifier: #VU143912
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-59456
CWE-ID: CWE-23
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to access files outside the intended upload directory.
The vulnerability exists due to path traversal in project archive upload when processing uploaded project archives. A remote user can upload a specially crafted archive containing traversal sequences to access files outside the intended upload directory.
Affected software
TeamCity
How to mitigate CVE-2025-59456
Install security update from vendor's website.
TeamCity - update to 2025.07.2