CVE-2023-42815

Summary

CVE-2023-42815 is a recently discovered vulnerability in the Kyverno policy engine for Kubernetes. This issue allows an attacker, who has control over a registry used by Kyverno to fetch signatures, to cause a denial of service. By manipulating the registry's response to Kyverno's requests, the attacker can return malicious data, leading to the blocking of admission requests from other users. Affected versions include those built from source at the main branch in v1.11.0. However, users consuming official Kyverno releases are not impacted. At present, there are no reports of this vulnerability being exploited in real-world attacks.

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