Medium severity6.2NVD Advisory· Published Nov 5, 2026
CVE-2026-122309
CVE-2026-122309
Description
Kyverno before 1.19.2 contains a denial of service vulnerability that allows namespace-scoped policy authors to exhaust CPU and memory by submitting CEL expressions evaluated without runtime cost limits. Attackers can create a NamespacedValidatingPolicy or NamespacedDeletingPolicy with nested map comprehensions over large ConfigMap fields to OOM-kill Kyverno pods and block cluster-wide admission.
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Affected products
1Patches
Vulnerability mechanics
References
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