CVE-2025-71424 (GCVE-0-2025-71424)

Vulnerability from cvelistv5 – Published: 2026-09-27 01:28 – Updated: 2026-10-08 15:21
VLAI
Title
Edgeless Systems Contrast before 1.9.1 Insecure Volume Mount
Summary
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`.
Severity
5.1 (Medium)
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3.5 (Low)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:50 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 8186 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
edgelesssys contrast Affected: 0 , < 1.9.1 (semver)
Unaffected: 1.9.1 (semver)
guessed Create a notification for this product.
Date Public
2025-07-09 00:00
Credits
burgerdev katexochen thomasten
Show details on NVD website
To clipboard 

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