CVE-2020-8564

Docker config secrets leaked when file is malformed and loglevel >= 4

Description

In Kubernetes clusters using a logging level of at least 4, processing a malformed docker config file will result in the contents of the docker config file being leaked, which can include pull secrets or other registry credentials. This affects < v1.19.3, < v1.18.10, < v1.17.13.

Remediation

Workaround:

  • Do not enable verbose logging in production (log level >= 4), limit access to logs.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Third-Party Advisory github.com Third-Party Advisory google.com Third-Party Advisory netapp.com
Affected: Kubernetes Kubernetes
Published at:
Updated at:

References

Link Tags
https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ mailing list third party advisory patch
https://github.com/kubernetes/kubernetes/issues/95622 third party advisory
https://security.netapp.com/advisory/ntap-20210122-0006/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-8564?
CVE-2020-8564 has been scored as a medium severity vulnerability.
How to fix CVE-2020-8564?
As a workaround for remediating CVE-2020-8564: Do not enable verbose logging in production (log level >= 4), limit access to logs.
Is CVE-2020-8564 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-8564 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-8564?
CVE-2020-8564 affects Kubernetes Kubernetes.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.