HIGH 8.4 NVD
CVE-2026-122316
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 m
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.
References
- https://github.com/kyverno/kyverno/security/advisories/GHSA-vm98-8c25-h274
- https://www.vulncheck.com/advisories/kyverno-1.17.0-before-1.19.2-cross-namespace-write-vi
This high severity vulnerability with a CVSS score of 8.4 was published on 2026-11-05 via NVD.
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