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CVE-2026-100833

9.6, critical

Edgelesssys contrast Improper Input Validation Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.6, critical critical CVSS v3.1
EPSS, next 30 days
0.2% higher than 13.2% of scored CVEs
Exploitation
No public evidence
Published
27 Sept 202620 days ago

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.

Details

Vendor
Edgelesssys
Product
contrast
Weakness
CWE-20 (opens in a new tab)
Status
Deferred
Updated
9 Oct 2026
Assigner
disclosure@vulncheck.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Edgelesssys CVEs

Every Edgelesssys CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-109358 Edgelesssys contrast Incorrect Permission Assignment for Critical Resource Vulnerability EPSS 0.1% 7.8, high
  • CVE-2026-109359 Contrast 1.8.0 before 1.24.1 contains an improper verification vulnerability in Coordinator peer recovery that fails to confirm the… EPSS 0.1% 7.7, high

Beyond this page

Is CVE-2026-100833 in your network?

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.