CVE-2026-93436: vLLM through 0.29.0 fails to properly clean up decode-side metadata for rejected inference requests in prefill/decode di

vLLM through 0.29.0 fails to properly clean up decode-side metadata for rejected inference requests in prefill/decode disaggregated deployments. Remote attackers can submit requests with max_tokens=0 to exhaust decode-worker memory without bound until the worker restarts.