Path traversal
A supplied file path escapes the directory the application intended to allow.
CWE-22 · NVD record: nvd@nist.gov
Reading and practice labs · Free account for labs. Basic HTTP knowledge; some labs use Burp Suite.
Exploited. On CISA's list since 2026-04-20, and used by ransomware.
JetBrains TeamCity Relative Path Traversal Vulnerability
CVE-2024-27199 · JetBrains TeamCity · Published 2024-03-04
How bad would it be?
7.3 out of 10
CVSS rates it high.
How likely is it to be used?
over 99%
Estimated chance of exploitation in the next 30 days, among the top 1% of all scored flaws (EPSS, 2026-10-29).
Is it already being used?
Yes
CISA has seen it exploited in real attacks. For US government agencies the fix is deadline passed 179 days ago (2026-05-04).
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
JetBrains TeamCity contains a relative path traversal vulnerability that could allow limited admin actions to be performed.
What the flaw is
In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible
From the NVD.
Fixes and advisories
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Understand the kind of weakness behind this flaw. These resources teach the weakness, rather than reproduce this specific CVE. Follow the vendor's advice above to fix the affected product.
CWE-23 · CISA KEV; NVD record: cve@jetbrains.com. We have not selected a close learning match for this label.
CWE is a catalogue of weakness types. Labels come from the sources shown and can differ or change. Resource matches reviewed 16 October 2026.
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Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.