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CVE-2026-94624

vLLM through 0.29.0 Denial of Service via Unbounded P2P KV Offloading Sessions

CVSS 4.0 8.7 HIGHCVSS 3.1 7.5 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-94624

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-94624

Published

vllm

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "vllm-project",
                    "product": "vllm",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:pypi/vllm",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "0.29.0",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON