What’s Vulnerable › Vulnerabilities

CVE-2020-8566: Ceph RBD adminSecrets exposed in logs when loglevel >= 4

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-07 · updated 2026-06-17
• Weakness: CWE-532

Description

In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager's logs during provisioning of Ceph RBD persistent claims. This affects < v1.19.3, < v1.18.10, < v1.17.13.

Affected products

• Kubernetes: from 1.17.0 before 1.17.13; from 1.18.0 before 1.18.10; from 1.19.0 before 1.19.3 — fixed in 1.17.13, 1.18.10, 1.19.3

How to fix

Upgrade to a fixed version: Kubernetes 1.17.13, 1.18.10, 1.19.3. Check the vendor advisory for mitigations.

References

• https://github.com/kubernetes/kubernetes/issues/95624
• https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ
• https://security.netapp.com/advisory/ntap-20210122-0006/
• https://github.com/kubernetes/kubernetes/issues/95624
• https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ
• https://security.netapp.com/advisory/ntap-20210122-0006/

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