Auth bypass in Kyverno
CVE-2026-41068
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Kyverno — versions < 1.17.2
Weakness classification (CWE)
References
- github.com/kyverno/kyverno/security/advisories/GHSA-cvq5-hhx3-f99p (Exploit, Vendor Advisory)
- github.com/kyverno/kyverno/commit/bbf3e5c01391d612968440659028ae98e565a777 (Patch)
Frequently asked questions
- What is CVE-2026-41068?
- CVE-2026-41068 is a high-severity vulnerability in Kyverno, classified under Incorrect Authorization. CVSS score: 7.7/10. Published 2026-04-24.
- How severe is CVE-2026-41068?
- High severity. CVSS v3 base score is 7.7 out of 10.