What’s Vulnerable › Vulnerabilities

CVE-2022-3162: Unauthorized read of Custom Resources

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-01 · updated 2026-06-17
• Weakness: CWE-23

Description

Users authorized to list or watch one type of namespaced custom resource cluster-wide can read custom resources of a different type in the same API group without authorization. Clusters are impacted by this vulnerability if all of the following are true: 1. There are 2+ CustomResourceDefinitions sharing the same API group 2. Users have cluster-wide list or watch authorization on one of those custom resources. 3. The same users are not authorized to read another custom resource in the same API group.

Affected products

• Kubernetes: through 1.22.15; from 1.23.0 through 1.23.13; from 1.24.0 through 1.24.7; from 1.25.0 through 1.25.3

References

• https://github.com/kubernetes/kubernetes/issues/113756
• https://groups.google.com/g/kubernetes-security-announce/c/iUd550j7kjA
• https://security.netapp.com/advisory/ntap-20230511-0004/
• https://github.com/kubernetes/kubernetes/issues/113756
• https://groups.google.com/g/kubernetes-security-announce/c/iUd550j7kjA
• https://security.netapp.com/advisory/ntap-20230511-0004/

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