HIGH 8.7 NVD
CVE-2026-94622
vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connector's metadata handling for prefill/decode disaggregated deployments. A
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.
References
- https://github.com/vllm-project/vllm
- https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/distributed/kv_transfer/kv_connecto
- https://github.com/vllm-project/vllm/pull/54807
- https://www.vulncheck.com/advisories/vllm-through-0.29.0-denial-of-service-via-incomplete-
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-09-21 via NVD.
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