vLLMPublished 25 Oct 2026NVD status: Received

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.

ComponentvLLM
Severityhigh (CVSS 8.2)
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Published (NVD)2026-10-25
Affected versions
>= 0.9.2, < 0.24.0
from the CVE Program record written by the CNA that assigned the CVE
Fixed in0.24.0
WeaknessCWE-918
CISA KEVnot listed

NVD 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.

What to do

  • Upgrade vLLM to 0.24.0 or later.
  • Do not expose the component's API or UI to the internet without authentication in front of it.

Sources

Read more