CVE-2026-94624

High

Description

vLLM through 0.29.0 contains a denial of service vulnerability in P2P KV offloading when OffloadingConnector is configured with TieringOffloadingSpec and a peer-to-peer secondary tier. Attackers can supply arbitrary remote host and port values in kv_transfer_params to create unreachable peer sessions that retain ZeroMQ sockets until the context quota is exhausted, causing an uncaught ZMQError that crashes EngineCore and stops all inference.

SeverityHigh

CVSS7.5

Exploit probability—

ProductVllm

PublishedSep 21, 2026

First seenSep 21, 2026

Weakness typeCWE-770Allocation of resources without limits

How to fix

Update

vllm0.32.0, 0.30.0 or later

Patches

github.com/vllm-project/vllm/pull/51504

Affected products

Product	Affected versions	Fixed in
vllm vllm	v ≤ 0.29.0	—
vllmPyPI	v < 0.32.0, v < 0.30.0	0.32.0, 0.30.0

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