Is CVE-2026-49373 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-49373 being exploited in the wild.

How severe is CVE-2026-49373?

High severity, with a CVSS score of 7.1, published 29 May 2026.

Which products and versions are affected?

Jetbrains TeamCity before 2026.1.

Is there a fix for CVE-2026-49373?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-49373 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-49373?

Check whether you run Jetbrains TeamCity at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-49373: JetBrains TeamCity remote code execution in Perforce connection settings

CVE-2026-49373 · Severity: high · CVSS 7.1 · Published 2026-05-29

JetBrains TeamCity, a popular continuous integration and deployment server, is vulnerable to a security flaw in its Perforce integration. An attacker with basic user permissions could exploit this to run unauthorized commands on the server. This could lead to the theft of sensitive source code, intellectual property, or full compromise of the build environment.

Technologies: Jetbrains TeamCity. Vendors: Jetbrains.

Quick answers

Is CVE-2026-49373 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-49373 being exploited in the wild.
How severe is CVE-2026-49373?: High severity, with a CVSS score of 7.1, published 29 May 2026.
Which products and versions are affected?: Jetbrains TeamCity before 2026.1.
Is there a fix for CVE-2026-49373?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-49373 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-49373?: Check whether you run Jetbrains TeamCity at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A remote code execution vulnerability exists in JetBrains TeamCity before version 2026.1 due to improper neutralization of argument delimiters (CWE-88) within Perforce connection settings. An authenticated attacker with low-level privileges (PR:L) can inject malicious arguments into the Perforce command-line interface via the web UI or API. This allows for the execution of arbitrary commands on the TeamCity server host. The vulnerability is reachable over the network and does not require user interaction. JetBrains has addressed this issue in the 2026.1 release.

Affected products

JetBrains TeamCity before 2026.1

Timeline

2026-05-29: disclosed
2026-05-29: advisory

References

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

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