{"id":"CVE-2025-47281","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.","aliases":["BIT-kyverno-2025-47281","GHSA-r5p3-955p-5ggq","GO-2025-3823"],"modified":"2026-04-10T05:28:46.347985Z","published":"2025-07-23T20:35:21.199Z","related":["CGA-8fqm-x9w6-77cg","openSUSE-SU-2025:15405-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-20","CWE-248"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47281.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47281.json"},{"type":"ADVISORY","url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-r5p3-955p-5ggq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47281"},{"type":"FIX","url":"https://github.com/kyverno/kyverno/commit/cbd7d4ca24de1c55396fc3295e9fc3215832be7c"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/kyverno/kyverno","events":[{"introduced":"0"},{"fixed":"40572b667e42a5234110e9b1492a7cc52f9a9bd0"}]}],"versions":["1.3.0-rc10","1.6-dev","1.7-dev","1.8-dev","1.9-dev","helm-chart-v2.0.3","helm-chart-v2.0.3-rc1","helm-chart-v2.0.3-rc2","helm-chart-v2.1.0","helm-chart-v2.1.3","kyverno-chart-3.4.0","kyverno-chart-3.4.0-alpha.1","kyverno-chart-3.4.0-rc.1","kyverno-chart-3.4.1","kyverno-chart-3.4.2-rc.1","kyverno-policies-chart-3.4.0","kyverno-policies-chart-3.4.0-alpha.1","kyverno-policies-chart-3.4.0-rc.1","kyverno-policies-chart-3.4.1","kyverno-policies-chart-3.4.2-rc.1","test-dev","v0.1.0","v0.10.0","v0.11.0","v0.2.0","v0.3.0","v0.4.0","v0.5.0","v0.7.0","v0.7.1","v0.8.0","v0.9.0","v0.9.1","v1.0.0","v1.0.0-rc1","v1.1.1","v1.1.10","v1.1.11","v1.1.12","v1.1.2","v1.1.3","v1.1.3-rc1","v1.1.4","v1.1.4-rc1","v1.1.5","v1.1.6","v1.1.6-rc1","v1.1.6-rc2","v1.1.6-rc3","v1.1.6-rc4","v1.1.6-rc5","v1.1.7","v1.1.7-rc1","v1.1.7-rc2","v1.1.7-rc3","v1.1.7-rc4","v1.1.8","v1.1.9","v1.14.0","v1.14.0-alpha.1","v1.14.0-rc.1","v1.14.1","v1.14.2-rc.1","v1.2.0","v1.2.1","v1.3.0","v1.3.0-rc1","v1.3.0-rc10","v1.3.0-rc11","v1.3.0-rc12","v1.3.0-rc2","v1.3.0-rc3","v1.3.0-rc4","v1.3.0-rc5","v1.3.0-rc6","v1.3.0-rc7","v1.3.0-rc8","v1.3.0-rc9","v1.3.1","v1.3.2","v1.3.2-rc1","v1.3.2-rc2","v1.3.2-rc3","v1.3.3","v1.3.4","v1.3.4-rc1","v1.3.5","v1.3.5-rc1","v1.3.5-rc2","v1.3.5-rc3","v1.3.5-rc4","v1.3.5-rc5","v1.3.6","v1.3.6-rc1","v1.3.6-rc2","v1.3.6-rc3","v1.3.6-rc4","v1.3.6-rc5","v1.4.0","v1.4.0-rc1","v1.4.0-rc2","v1.4.0-rc3","v1.4.0-rc4","v1.4.1","v1.4.2","v1.4.2-rc1","v1.4.2-rc2","v1.4.2-rc3","v1.4.2-rc4","v1.4.3","v1.4.3-rc1","v1.4.3-rc2","v1.5.0-rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-47281.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"}]}