CVE-2021-25740: Externally Controlled Reference to a Resource in Another Sphere

September 21, 2021 (updated October 4, 2021)

A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.

References

github.com/advisories/GHSA-vw47-mr44-3jf9
github.com/kubernetes/kubernetes/issues/103675
groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE
nvd.nist.gov/vuln/detail/CVE-2021-25740

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