CVE-2026-122316

HighCVSS 8.5/10Last modified Nov 10, 2026

Description

Kyverno from 1.17.0 before 1.19.2 contains a missing authorization vulnerability in the mutate-existing background processor that allows namespaced tenants to modify resources outside their namespace. Attackers can create a NamespacedMutatingPolicy targeting Namespace objects or victim-namespace resources via CEL expressions, making the background-controller ServiceAccount strip Pod Security labels cluster-wide.

Metrics

CVSS 3.1 8.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N

Weakness enumeration

CWE-862

Affected software

Vendor	Product	Versions
kyverno	kyverno	>= 1.17.0, < 1.19.2

References

Timeline

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

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