CVE-2025-59456 Path traversal in TeamCity

What is CVE-2025-59456?

CVE-2025-59456 is a medium-severity path traversal vulnerability in Jetbrains Teamcity, published on 17 Sep 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

In JetBrains TeamCity before 2025.07.2 path traversal was possible during project archive upload

Weakness: CWE-23

Which versions are affected by CVE-2025-59456?

It affects 1 product.

Products include Jetbrains Teamcity.

How do I fix CVE-2025-59456?

No fix has been published for CVE-2025-59456 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-59456 being exploited?

There is no known exploitation of CVE-2025-59456 in the wild and no public exploit code.

Other vulnerabilities in Jetbrains Teamcity

• CVE-2026-63077 JetBrains TeamCity Deserialization of Untrusted Data Exploited Critical 9.8
• CVE-2024-27198 JetBrains TeamCity Authentication Bypass Exploited Critical 9.8
• CVE-2023-42793 JetBrains TeamCity Authentication Bypass Exploited Critical 9.8
• CVE-2024-27199 JetBrains TeamCity Relative Path Traversal Exploited High 7.3
• CVE-2024-23917 Auth bypass in TeamCity Critical 9.8

All Jetbrains Teamcity vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8j49-66vh-8w64.