CVE-2023-39174 Denial of service in TeamCity

What is CVE-2023-39174?

CVE-2023-39174 is a medium-severity denial of service vulnerability in Jetbrains Teamcity, published on 25 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In JetBrains TeamCity before 2023.05.2 a ReDoS attack was possible via integration with issue trackers

Weakness: CWE-1333

Which versions are affected by CVE-2023-39174?

It affects 1 product.

Products include Jetbrains Teamcity.

How do I fix CVE-2023-39174?

No fix has been published for CVE-2023-39174 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-39174 being exploited?

There is no known exploitation of CVE-2023-39174 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-4rgr-v5ff-6hgp.