1.19.1 Privilege Escalation via apiCall Namespace Clamp Bypass
Not on CISA's list of exploited flaws, and not in the news we track.
0.55%
Fix it in your code
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Kyverno from 1.19.1 before 1.19.2 contains an authorization bypass vulnerability in the apiCall namespace clamp that allows namespace tenants to issue cross-namespace and cluster-scoped API requests by appending malformed percent-escapes to urlPath. Attackers can create namespaced Policies whose apiCall runs as the admission-controller ServiceAccount to read other namespaces' resources and create mutating webhooks, escalating to cluster admin.