Missing Authorization Affecting github.com/kubewarden/adm-controller/api/policies/v1 package, versions <1.35.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMKUBEWARDENADMCONTROLLERAPIPOLICIESV1-16424177
- published6 May 2026
- disclosed5 May 2026
- creditthevilledev
Introduced: 5 May 2026
CVE-2026-42541 Â (opens in a new tab)How to fix?
Upgrade github.com/kubewarden/adm-controller/api/policies/v1 to version 1.35.0 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authorization via the can_i callback, which issues SubjectAccessReview requests without enforcing context-aware allow-lists. An attacker can obtain information about RBAC permissions of any user or service account across the cluster by crafting a policy that leverages this callback. This is only exploitable if the attacker has privileged AdmissionPolicy or AdmissionPolicyGroup create permissions, which is not the default configuration.
Workaround
This vulnerability can be mitigated by not allowing users to create namespaced policies or by removing SubjectAccessReview "create" permissions for the PolicyServer ServiceAccount RBAC being used.