BIT-kyverno-2025-47281
See a problem?- Import Source
- https://github.com/bitnami/vulndb/tree/main/data/kyverno/BIT-kyverno-2025-47281.json
- JSON Data
- https://api.osv.dev/v1/vulns/BIT-kyverno-2025-47281
- Aliases
- Published
- 2025-09-12T11:43:05.940Z
- Modified
- 2025-09-15T07:42:02.709364Z
- 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., {{@ | nonexistentfunction }}). 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.
- Database specific
{ "severity": "High", "cpes": [ "cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:go:*:*" ] }- References
Affected packages
Bitnami / kyverno
Package
- Name
- kyverno
- Purl
- pkg:bitnami/kyverno
Severity
- 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator