Medium

Externally Controlled Reference to a Resource in Another Sphere and Confused Deputy in Spring Cloud Netflix

  • Disclosed: 30.04.2021
  • Updated: 11.10.2026 11:21

Spring Cloud Netflix, versions 2.2.x prior to 2.2.4, versions 2.1.x prior to 2.1.6, and older unsupported versions allow applications to use the Hystrix Dashboard proxy.stream endpoint to make requests to any server reachable by the server hosting the dashboard. A malicious user, or attacker, can send a request to other servers that should not be exposed publicly.

Affected software

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PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.springframework.cloud:spring-cloud-netflix >= 2.2.0, < 2.2.4, >= 2.1.0, < 2.1.6 2.2.4, 2.1.6

References

CVSS score 6.5/10
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N
Weakness (CWE)
CWE-441, CWE-610
Platform
Java / Kotlin (Maven)
Package
org.springframework.cloud:spring-cloud-netflix
Disclosed
30.04.2021
Updated
11.10.2026 11:21

Sources and licenses

OSV / GitHub Advisory Database - GHSA-qgcg-p3v2-9h4p - CC BY 4.0

Vulnerability history: org.springframework.cloud:spring-cloud-netflix

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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