CVE-2026-100838 (GCVE-0-2026-100838)
Vulnerability from cvelistv5
Published
2026-09-27 01:28
Modified
2026-10-08 15:22
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Summary
Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.19.1, the Kata agent policies generated by the Contrast CLI contained a flaw in the CopyFile verification that allowed arbitrary writes to the guest root filesystem. A malicious process on the untrusted host able to connect to the Kata agent VSOCK could issue a series of CopyFile requests to overwrite security-critical files in the guest or trick the workload into disclosing sensitive data, effectively amounting to a full guest takeover. Users unable to upgrade can apply an equivalent rego policy fix passed to 'contrast generate --policy'.
Impacted products
Vendor Product Version
edgelesssys contrast Version: 0   ≤
Create a notification for this product.
Show details on NVD website


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