{"id":"CVE-2026-100833","published":"2026-09-27T02:17:21.323","lastModified":"2026-09-28T14:17:09.823","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.","cvssScore":8.2,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","cwes":["CWE-20"],"vendors":[],"products":[],"references":[{"url":"https://github.com/edgelesssys/contrast/security/advisories/GHSA-m2qg-wrxv-h898","tags":[]},{"url":"https://www.vulncheck.com/advisories/contrast-before-1.23.1-image-substitution-via-policy-generation","tags":[]}],"exploitRefs":[{"url":"https://github.com/edgelesssys/contrast/security/advisories/GHSA-m2qg-wrxv-h898","tags":[]}],"hasPoc":true,"ai":null}