Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vllm | Vllm | <= 0.29.0 |
Related Weaknesses (CWE)
References
- https://github.com/vllm-project/vllmProduct
- https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/kv_offload/tiering/p2pProduct
- https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/v1/kv_offload/tiering/p2pProduct
- https://github.com/vllm-project/vllm/pull/51504Issue TrackingPatch
- https://www.vulncheck.com/advisories/vllm-through-0.29.0-denial-of-service-via-uThird Party Advisory
FAQ
What is CVE-2026-94624?
CVE-2026-94624 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 s...
How severe is CVE-2026-94624?
CVE-2026-94624 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-94624?
Check the references section above for vendor advisories and patch information. Affected products include: Vllm Vllm.