What is CVE-2025-59455?

CVE-2025-59455 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.2/10. Published 2025-09-17.

How severe is CVE-2025-59455?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Jetbrains Teamcity

CVE-2025-59455

In JetBrains TeamCity before 2025.07.2 project isolation bypass was possible due to race condition

Vulnerability class: Race Condition

EPSS: 0.004 (31.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Jetbrains Teamcity — versions 0

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

cve@jetbrains.com (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2025-59455?: CVE-2025-59455 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.2/10. Published 2025-09-17.
How severe is CVE-2025-59455?: Medium severity. CVSS v3 base score is 4.2 out of 10.