CVE-2024-56355

Name: CVE-2024-56355
Creator: NVD / NIST
Published: 2024-12-20T15:15:09.63+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.77%

Last modified Jun 17, 2026

CVE-2024-56355 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. In JetBrains TeamCity before 2024.12 missing Content-Type header in RemoteBuildLogController response could lead to XSS. EPSS estimates a 0.77% chance of exploitation in the next 30 days.

Description

In JetBrains TeamCity before 2024.12 missing Content-Type header in RemoteBuildLogController response could lead to XSS

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.77%

50.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Jetbrains	Teamcity	< 2024.12

References

https://www.jetbrains.com/privacy-security/issues-fixed/Vendor Advisory

Timeline

Published: Dec 20, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-56355?

In JetBrains TeamCity before 2024.12 missing Content-Type header in RemoteBuildLogController response could lead to XSS

How severe is CVE-2024-56355?

CVE-2024-56355 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.77% probability of exploitation in the next 30 days.

How do I fix CVE-2024-56355?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-56355?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST