What is CVE-2025-59456?

CVE-2025-59456 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Relative Path Traversal. CVSS score: 5.5/10. Published 2025-09-17.

How severe is CVE-2025-59456?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Path Traversal in Jetbrains Teamcity

CVE-2025-59456

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

Published 2025-09-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L.

EPSS exploit prediction

EPSS: 0.130 (96.2th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.130 · newest: 0.130 · change: 0.000

Affected products

Jetbrains Teamcity — versions 0

Weakness classification (CWE)

CWE-23 — Relative Path Traversal

References

www.jetbrains.com/privacy-security/issues-fixed/ (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2025-59456?: CVE-2025-59456 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Relative Path Traversal. CVSS score: 5.5/10. Published 2025-09-17.
How severe is CVE-2025-59456?: Medium severity. CVSS v3 base score is 5.5 out of 10.