CVE-2026-122304 | BDVDB-2026-400815 Detail

Description#

Kyverno from 1.17.0 before 1.19.2 contains an authorization bypass vulnerability that allows namespace admins to escape namespace confinement because the cleanup controller builds its context loader with a nil policy. Attackers can create a namespaced CleanupPolicy with apiCall or globalReference context entries to read cross-namespace Secrets and modify validatingwebhookconfigurations using the cleanup controller's ServiceAccount.

Impact#

Weaknesses#

References#

Exploit#

History#

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