{"schema_version":"1.9.0","id":"BIT-kyverno-2025-47281","published":"2025-09-12T11:43:05.940Z","modified":"2026-09-08T08:48:08.016120008Z","aliases":["CVE-2025-47281","GHSA-r5p3-955p-5ggq","GO-2025-3823"],"summary":"Kyverno's Improper JMESPath Variable Evaluation Leads to Denial of Service","details":"Kyverno is a policy engine designed for cloud native platform engineering teams. In versions 1.14.1 and below, a Denial of Service (DoS) vulnerability exists due to improper handling of JMESPath variable substitutions. Attackers with permissions to create or update Kyverno policies can craft expressions using the {{@}} variable combined with a pipe and an invalid JMESPath function (e.g., {{@ | non_existent_function }}). This leads to a nil value being substituted into the policy structure. Subsequent processing by internal functions, specifically getValueAsStringMap, which expect string values, results in a panic due to a type assertion failure (interface {} is nil, not string). This crashes Kyverno worker threads in the admission controller and causes continuous crashes of the reports controller pod. This is fixed in version 1.14.2.","affected":[{"package":{"name":"kyverno","ecosystem":"Bitnami","purl":"pkg:bitnami/kyverno"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.14.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/kyverno/BIT-kyverno-2025-47281.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"}]}],"references":[{"type":"FIX","url":"https://github.com/kyverno/kyverno/commit/cbd7d4ca24de1c55396fc3295e9fc3215832be7c"},{"type":"ADVISORY","url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-r5p3-955p-5ggq"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47281"}],"database_specific":{"cpes":["cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:go:*:*"],"severity":"High"}}