CVE-2026-122310
CRITICAL
NVD
CVSS Score
9.9
Severity
CRITICAL
Published
Nov 05, 2026
Vendor
unknown
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.