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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/vllm-project/vllm/security/advisories/GHSA-vfp2-c8pq-v6h6	Vendor Advisory
https://www.vulncheck.com/advisories/vllm-0.9.2-before-0.24.0-ssrf-via-x-request-id-in-p2pncclconnector	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*

History

28 Oct 2026, 15:41

Type	Values Removed	Values Added
CPE		cpe:2.3:a:vllm:vllm::::::::
First Time		Vllm vllm Vllm
References	~~() https://github.com/vllm-project/vllm/security/advisories/GHSA-vfp2-c8pq-v6h6 -~~	() https://github.com/vllm-project/vllm/security/advisories/GHSA-vfp2-c8pq-v6h6 - Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/vllm-0.9.2-before-0.24.0-ssrf-via-x-request-id-in-p2pncclconnector -~~	() https://www.vulncheck.com/advisories/vllm-0.9.2-before-0.24.0-ssrf-via-x-request-id-in-p2pncclconnector - Third Party Advisory

25 Oct 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-25 14:16

Updated : 2026-10-28 15:41

NVD link : CVE-2026-116176

Mitre link : CVE-2026-116176

CVE.ORG link : CVE-2026-116176

JSON object : View

Products Affected

vllm

vllm

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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