CVE-2026-100833: Edgelesssys Contrast

Critical severity, CVSS 9.6. EPSS: 0.2% chance of exploitation in the next 30 days.

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

• Edgelesssys Contrast: from 1.14.0, before 1.23.1 (fixed in 1.23.1)

Published 2026-09-27. Last modified 2026-10-09.