CVE-2026-122309 | BDVDB-2026-400820 Detail

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.

Impact#

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Exploit#

History#

1. Version 12026-11-05Record published in the CVE List.
2. Version 22026-11-09Most recent update recorded in the CVE List.