← CVE Radar
CVE-2026-122309Kyverno before 1.19.2 Denial of Service via Unbounded CEL Policy Evaluation Cost
Kyverno before 1.19.2 contains a denial of service vulnerability that allows namespace-scoped policy authors to exhaust CPU and memory by submitting CEL expressions evaluated without runtime cost limits. Attackers can create a NamespacedValidatingPolicy or NamespacedDeletingPolicy with nested map comprehensions over large ConfigMap fields to OOM-kill Kyverno pods and block cluster-wide admission.
8.2 HIGHEPSS 0.19%Not in KEVNVD: Undergoing Analysis
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.2 | HIGH | 4.0VulnCheck (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H |
| 6.2 | MEDIUM | 3.1VulnCheck (CNA) | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:N/A:H |
Details
- CVE ID
- CVE-2026-122309
- Status
- Undergoing Analysis
- Assigner (CNA)
- VulnCheck
- Published
- Nov 5, 2026
- Last modified
- 2026-11-05 14:58 UTC
- Weaknesses
- CWE-400 · Uncontrolled Resource Consumption
Affected Products
As published by the CNA in the CVE record.
kyvernokyverno1 version range
- before 1.19.2