CVE-2026-94624 vLLM through 0.29.0 Denial of Service via Unbounded P2P KV Offloading Sessions

What is CVE-2026-94624?

CVE-2026-94624 is a high-severity denial of service vulnerability in Vllm Vllm, published on 21 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-770

Which versions are affected by CVE-2026-94624?

3 open source packages ship an affected version, including vllm. It affects 1 product.

Products include Vllm Vllm.

How do I fix CVE-2026-94624?

Upgrade vllm to a fixed version for your release line: 0.30.0 or 0.32.0.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-94624 being exploited?

There is no known exploitation of CVE-2026-94624 in the wild and no public exploit code.

Other vulnerabilities in Vllm Vllm

• CVE-2025-32444 vLLM Vulnerable to Remote Code Execution via Mooncake Integration Critical 10.0
• CVE-2026-22778 vLLM leaks a heap address when PIL throws an error Critical 9.8
• CVE-2025-47277 vLLM Allows Remote Code Execution via PyNcclPipe Communication Service Critical 9.8
• CVE-2024-11041 Remote Code Execution in vllm-project/vllm Critical 9.8
• CVE-2026-48746 vLLM: OpenAI auth bypass Critical 9.1

All Vllm Vllm vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-frvg-qw88-hww9, MINI-2c7h-jqmm-88r7, MINI-6hwp-8f27-vpgq, MINI-mx43-54wj-vvjv, PYSEC-2026-4006.