CVE-2026-100704

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Source

https://cve.org/CVERecord?id=CVE-2026-100704

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100704.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-100704

Aliases

GHSA-5cjf-wwfg-pj4c

Published

2026-09-26T13:23:59Z

Modified

2026-09-28T03:48:30Z

Severity

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

Summary

Kyverno before 1.19.1 ImageValidatingPolicy Exception Bypass

Details

Kyverno is a policy engine for Kubernetes. In versions 1.14.0 through 1.19.0, the ImageValidatingPolicy (policies.kyverno.io/v1beta1) evaluator never reads the spec.images and spec.allowedValues fields of a PolicyException. Any PolicyException whose policyRefs and matchConditions match a resource causes image signature verification to be skipped for the entire resource rather than only for the listed images or values, so an exception intended to exempt a single trusted image exempts every image on the matched resource(s). As a result, unsigned or untrusted images can be admitted to the cluster without signature verification. This differs from ValidatingPolicy, GeneratingPolicy, and MutatingPolicy, which treat the same field as a partial exemption. The issue is fixed in version 1.19.1.

Database specific

{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-863"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100704.json"
}

References

Affected packages

Git / github.com/kyverno/kyverno

Affected ranges

Type

GIT

Repo

https://github.com/kyverno/kyverno

Events

Introduced

338a72c59ddd055a3ad8aaae511bafa742608641

Fixed

40ec788d48bb28d83dbf85538e962a59db9d45c6

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "1.14.0"
        },
        {
            "fixed":  "1.19.1"
        },
        {
            "fixed":  "1.19.0"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100704.json"