Vulnerability Description
Contrast, Edgeless Systems' runtime for confidential containers on Kubernetes, is affected in versions up to and including 1.9.0. The VOLUME directive in a Dockerfile (config.volumes in the OCI image configuration) is only a hint and is not handled specially by Kubernetes, but containerd adds a mount point for it when Kubernetes sets none, requiring the runtime to be able to push arbitrary data to the Kata agent. As a result, on bare-metal Contrast deployments (AKS deployments are not affected) that run an image declaring at least one VOLUME for which no Kubernetes mount exists at that path, the untrusted host can write arbitrary file trees below that mount point inside the confidential container, compromising the integrity of a directory that is typically important to the application's core functionality. Version 1.9.1 fixes the issue by disallowing this configuration in `contrast generate`.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/edgelesssys/contrast/security/advisories/GHSA-phhq-63jg-fp7r
- https://www.vulncheck.com/advisories/edgeless-systems-contrast-before-1.9.1-inse
FAQ
What is CVE-2025-71424?
CVE-2025-71424 is a vulnerability with a CVSS score of 3.5 (LOW). Contrast, Edgeless Systems' runtime for confidential containers on Kubernetes, is affected in versions up to and including 1.9.0. The VOLUME directive in a Dockerfile (config.volumes in the OCI image ...
How severe is CVE-2025-71424?
CVE-2025-71424 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-71424?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.