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CVE-2021-25737: CVE-2021-25737: Holes in EndpointSlice Validation Enable Host Network Hijack · Issue #102106 · kubernetes/kubernetes
A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs.
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