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Servers and applications

CVE-2026-116176

vLLM 0.9.2 before 0.24.0 SSRF via X-Request-Id in P2pNcclConnector

Severity
High 8.8
Published
25 Oct 2026
Last changed
28 Oct 2026
Added to UpHeron
3 Nov 2026
Fixed in
0.24.0
Sources
NVD, CVE Program

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 software

SoftwareAffected versions
vLLMServers and applications · cna:vllm-project|vllm
  • From 0.9.2 before 0.24.0
vLLMServers and applications · cpe:a:vllm:vllm
  • From 0.9.2 before 0.24.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-116176
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-116176