# CVE-2026-49372: JetBrains TeamCity unauthenticated SSRF in build status

Source: https://junglewise.ai/threats/cve-2026-49372-jetbrains-teamcity-unauthenticated-ssrf-in-build-status  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-29. Updated: 2026-05-29  
License: CC BY 4.0 with a link back

CVE-2026-49372 · Severity: high · CVSS 7.5 · Published 2026-05-29

JetBrains TeamCity, a popular platform for automating software builds and deployments, is affected by a security flaw in its build status functionality. An unauthorized attacker could use the server to make requests to internal systems that are not normally accessible from the internet. This could lead to the exposure of sensitive internal data or provide a foothold for further attacks within the corporate network.

Technologies: [Jetbrains TeamCity](https://junglewise.ai/threats/technologies/teamcity). Vendors: [Jetbrains](https://junglewise.ai/threats/vendors/jetbrains).

## Quick answers

**Is CVE-2026-49372 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-49372 being exploited in the wild.

**How severe is CVE-2026-49372?** High severity, with a CVSS score of 7.5, published 29 May 2026.

**Which products and versions are affected?** Jetbrains TeamCity Before 2026.1, 2025.11.5.

**Is there a fix for CVE-2026-49372?** 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-2026-49372 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-49372?** 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 Server-Side Request Forgery (SSRF) vulnerability (CWE-918) exists in JetBrains TeamCity versions prior to 2026.1 and 2025.11.5. The flaw is located within the build status functionality and can be triggered by an unauthenticated remote attacker. By sending a specially crafted request, an attacker can force the TeamCity server to initiate outbound requests to arbitrary internal or external IP addresses. This can be leveraged to bypass firewall restrictions, perform internal port scanning, or access sensitive metadata services and internal APIs. The issue has been addressed in TeamCity versions 2026.1 and 2025.11.5.

## Affected products

- JetBrains TeamCity Before 2026.1, 2025.11.5

## Timeline

- 2026-05-29: advisory: CVE-2026-49372 published by JetBrains and NVD.

## References

- [https://www.jetbrains.com/privacy-security/issues-fixed/](https://www.jetbrains.com/privacy-security/issues-fixed/)

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