Denial of Service Vulnerability in Kyverno Cloud Native Policy Engine

CVE-2025-47281

What is CVE-2025-47281?

Inversions 1.14.1 and earlier, Kyverno, a policy engine for cloud native platforms, is susceptible to a Denial of Service (DoS) attack due to improper handling of JMESPath variable substitutions. An attacker with permission to modify Kyverno policies can exploit this vulnerability by crafting expressions that lead to nil values being inserted into the policy structure. This results in panic events within the internal functions designed to process expected string values, such as getValueAsStringMap, ultimately crashing worker threads of the Kyverno admission controller and causing repeated failures of the reports controller pod. The issue is resolved in version 1.14.2.

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