CVE-2026-122302

CriticalCVSS 9.8/10Last modified Nov 10, 2026

Description

Kyverno before 1.19.2 contains a privilege escalation vulnerability that allows namespace admins to create resources beyond their RBAC because generate-rule admission checks verify the controller's permissions, not the author's. Attackers can create a namespaced Policy with generate rules targeting other namespaces or cluster-scoped kinds, making the background controller create or clone resources cluster-wide.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-269

Affected software

VendorProductVersions
kyvernokyverno< 1.19.2

References

Timeline

Published
Nov 5, 2026
Last modified
Nov 10, 2026
NVD status
Analyzed

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CVE-2026-122302: Critical severity, CVSS 9.8 | Vulnix