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CVE PROGRAM SOURCE RECORD8.6 High

CVE-2026-100833

Contrast before 1.23.1 Image Substitution via Policy Generation

Description

Contrast (edgelesssys/contrast) versions 1.14.0 before 1.23.1 generate runtime policies that fail to detect all container image substitutions. A bad rebase during a Kata Containers update accidentally introduced an `allow_storage` rule that accepts storage entries using the `image_guest_pull` driver without verifying the image digest. An attacker with access to the Kata agent API — for example, a Kubernetes cluster administrator in Contrast's threat model — can therefore substitute a container image with an exploit payload, provided the substituted image satisfies the remaining policy rules, undermining the confidential container's integrity guarantees.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

edgelesssys contrast

Default version status: unaffected

  • 1.14.0 to < 1.23.1affected
  • 1.23.1unaffected

References