CVE-2026-122310 | BDVDB-2026-400821 Detail

Description#

Kyverno from 1.19.1 before 1.19.2 validates a Policy's context.apiCall urlPath after cleaning it but executes the raw path, whose fragment or query the Kubernetes client discards. A namespace-scoped user who can create a Policy can hide ../ segments behind # or ? to reach cluster-scoped endpoints with Kyverno's ServiceAccount, gaining cluster admin.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-11-05Record published in the CVE List.