CVE-2026-100833

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Source

https://cve.org/CVERecord?id=CVE-2026-100833

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100833.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-100833

Aliases

GHSA-m2qg-wrxv-h898

Published

2026-09-27T01:28:32Z

Modified

2026-09-28T03:48:30Z

Severity

7.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Contrast before 1.23.1 Image Substitution via Policy Generation

Details

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.

Database specific

{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-20"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100833.json"
}

References

Affected packages

Git / github.com/edgelesssys/contrast

Affected ranges

Type

GIT

Repo

https://github.com/edgelesssys/contrast

Events

Introduced

b5b8c31d6673559df2881902882f89e7ec87ca62

Fixed

1c6f2bbec66007f1fed56b64a5b06a4e617409e2

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "1.14.0"
        },
        {
            "fixed":  "1.23.1"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100833.json"