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Incorrect Authorization Affecting kubescape package, versions <4.0.12-r13

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.25% (16th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-KUBESCAPE-19540267
  • published5 Sept 2026
  • disclosed15 Jul 2026
Report a new vulnerability Found a mistake?

Introduced: 15 Jul 2026

CVE-2026-56743  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Chainguard kubescape to version 4.0.12-r13 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubescape package and not the kubescape package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Cilium is a networking, observability, and security solution. From 1.19.0 to 1.19.4, standard Kubernetes NetworkPolicy specifications using CIDR-based ipBlock rules without pod or namespace selectors erroneously generate a wildcard namespace allow rule when Cilium is configured with a custom clusterName rather than the default any value. The parser incorrectly instantiates a pod selector on selectorless peer definitions, allowing traffic from other workloads in the same namespace as the subject of the policy. This issue is fixed in version 1.19.5.