Description
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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| vllm-project | vllm | 0.9.2 – < 0.24.0 | 0.24.0 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | vllm | >= 0.9.2, < 0.24.0 | 0.24.0 | PYSEC-2026-4351 |
Advisories 1
- WID-SEC-2026-3828 vllm: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
References
- GitHub Security Advisory (GHSA-vfp2-c8pq-v6h6) vendor-advisory
- VulnCheck Advisory: vLLM 0.9.2 before 0.24.0 SSRF via X-Request-Id in P2pNcclConnector third-party-advisory