CVE-2026-94622 [HIGH] – vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connect

vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connector’s metadata handling for prefill/decode disaggregated deployments. Attackers can send requests with incomplete kv_transfer_params dictionary entries to trigger an uncaught KeyError in EngineCore scheduling, causing the decode engine to terminate and making all routed requests fail until manual restart.