- Description
- Kyverno is a policy engine designed for cloud native platform engineering teams. The patch for CVE-2026-22039 fixed cross-namespace privilege escalation in Kyverno's `apiCall` context by validating the `URLPath` field. However, the ConfigMap context loader has the identical vulnerability — the `configMap.namespace` field accepts any namespace with zero validation, allowing a namespace admin to read ConfigMaps from any namespace using Kyverno's privileged service account. This is a complete RBAC bypass in multi-tenant Kubernetes clusters. An updated fix is available in version 1.17.2.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
- Products
- kyverno
CVSS 3.1
- Type
- Secondary
- Base score
- 7.7
- Impact score
- 4
- Exploitability score
- 3.1
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- Severity
- HIGH
- security-advisories@github.com
- CWE-863
- Hype score
- Not currently trending
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