high · CVSS v3 8.5 · CVSS v4 8.4

CVE-2026-122316

Kyverno from 1.17.0 before 1.19.2 contains a missing authorization vulnerability in the mutate-existing background proce…

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.

Scores

Severity
high
CVSS v2
7.5
CVSS v3
8.5
CVSS v4
8.4
EPSS
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