Vulnerability Details CVE-2026-116176
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 24.7%
CVSS Severity
CVSS v3 Score 8.2
Products affected by CVE-2026-116176
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cpe:2.3:a:vllm:vllm:0.10.0
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cpe:2.3:a:vllm:vllm:0.10.1
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cpe:2.3:a:vllm:vllm:0.10.1.1
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cpe:2.3:a:vllm:vllm:0.10.2
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cpe:2.3:a:vllm:vllm:0.11.0
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cpe:2.3:a:vllm:vllm:0.11.1
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cpe:2.3:a:vllm:vllm:0.11.2
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cpe:2.3:a:vllm:vllm:0.12.0
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cpe:2.3:a:vllm:vllm:0.13.0
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cpe:2.3:a:vllm:vllm:0.14.0
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cpe:2.3:a:vllm:vllm:0.14.1
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cpe:2.3:a:vllm:vllm:0.15.0
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cpe:2.3:a:vllm:vllm:0.15.1
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cpe:2.3:a:vllm:vllm:0.15.2
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cpe:2.3:a:vllm:vllm:0.16.0
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cpe:2.3:a:vllm:vllm:0.16.1
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cpe:2.3:a:vllm:vllm:0.17.0
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cpe:2.3:a:vllm:vllm:0.17.1
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cpe:2.3:a:vllm:vllm:0.17.2
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cpe:2.3:a:vllm:vllm:0.18.0
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cpe:2.3:a:vllm:vllm:0.18.1
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cpe:2.3:a:vllm:vllm:0.18.2
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cpe:2.3:a:vllm:vllm:0.19.0
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cpe:2.3:a:vllm:vllm:0.19.1
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cpe:2.3:a:vllm:vllm:0.19.2
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cpe:2.3:a:vllm:vllm:0.20.0
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cpe:2.3:a:vllm:vllm:0.20.1
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cpe:2.3:a:vllm:vllm:0.20.2
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cpe:2.3:a:vllm:vllm:0.21.0
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cpe:2.3:a:vllm:vllm:0.21.1
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cpe:2.3:a:vllm:vllm:0.22.0
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cpe:2.3:a:vllm:vllm:0.22.1
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cpe:2.3:a:vllm:vllm:0.23.0
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cpe:2.3:a:vllm:vllm:0.23.1
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cpe:2.3:a:vllm:vllm:0.9.2