CVE-2026-47858: Spring Tools JMX remote code execution in live information mode

CVE-2026-47858 · Severity: high · CVSS 8 · Published 2026-07-30

When developers use Spring Tools to run Spring Boot applications with 'live information mode' enabled, the running application becomes vulnerable to remote attacks. An attacker on the same network could potentially execute unauthorized code on the developer's machine or the server running the application. This could lead to a full system compromise, data theft, or unauthorized access to development environments.

Technologies: Broadcom Spring Tools for Eclipse. Vendors: Broadcom.

Quick answers

Is CVE-2026-47858 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-47858 being exploited in the wild.
How severe is CVE-2026-47858?
High severity, with a CVSS score of 8, published 30 July 2026.
Which products and versions are affected?
Broadcom Spring Tools for Eclipse 5.2.0 and earlier; Broadcom Spring Tools for VSCode / Cursor / Theia 2.2.0 and earlier.
Is there a fix for CVE-2026-47858?
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-2026-47858 attacked?
It is attacked from the adjacent network, in a software library.
Am I affected by CVE-2026-47858?
Check whether you run Broadcom Spring Tools for Eclipse or Broadcom Spring Tools for VSCode / Cursor / Theia 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 (RCE) vulnerability exists in Spring Tools when Spring Boot applications are launched with 'live information mode' active. This mode enables Java Management Extensions (JMX) in a manner that allows for unauthenticated remote interaction. An attacker with adjacent network access can leverage the JMX interface to execute arbitrary code within the context of the running application. The vulnerability affects Spring Tools for Eclipse (5.2.0 and earlier) and Spring Tools for VSCode/Cursor/Theia (2.2.0 and earlier). Users should update to newer versions of these tools to mitigate the risk.

Affected products

  • Spring Spring Tools for Eclipse 5.2.0 and earlier
  • Spring Spring Tools for VSCode / Cursor / Theia 2.2.0 and earlier

Timeline

  • 2026-07-30: advisory: Initial publication of the advisory.

References

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