CVE-2026-116176: vllm vllm

CVSS 8.8 (high) · published 2026-10-25

vLLM from 0.9.2 before 0.24.0 contains a server-side request forgery vulnerability that allows API callers to force outbound connections by embedding a decode address in the X-Request-Id header. Attackers can make a P2pNcclConnector prefill worker ZMQ-connect to an attacker host, leaking the NCCL unique_id and KV-cache tensors or blocking the worker.

Affected products (NVD): vllm vllm

Fixed in (NVD): 0.24.0

Weakness: CWE-918

Source: NVD CVE-2026-116176

References

• https://github.com/vllm-project/vllm/security/advisories/GHSA-vfp2-c8pq-v6h6
• https://www.vulncheck.com/advisories/vllm-0.9.2-before-0.24.0-ssrf-via-x-request-id-in-p2pncclconnector

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