CVE-2025-47281
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-47281
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-47281.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-47281
- Aliases
- Downstream
- Related
- Published
- 2025-07-23T20:35:21.199Z
- Modified
- 2025-12-02T20:04:44.926Z
- 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
- 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
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47281.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-20", "CWE-248" ] }- References
Affected packages
Git / github.com/kyverno/kyverno
Affected ranges
- Type
- GIT
- Repo
- https://github.com/kyverno/kyverno
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed