Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vllm | Vllm | >= 0.9.2, < 0.24.0 |
Related Weaknesses (CWE)
References
- https://github.com/vllm-project/vllm/security/advisories/GHSA-vfp2-c8pq-v6h6Vendor Advisory
- https://www.vulncheck.com/advisories/vllm-0.9.2-before-0.24.0-ssrf-via-x-requestThird Party Advisory
FAQ
What is CVE-2026-116176?
CVE-2026-116176 is a vulnerability with a CVSS score of 8.2 (HIGH). 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. Attac...
How severe is CVE-2026-116176?
CVE-2026-116176 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116176?
Check the references section above for vendor advisories and patch information. Affected products include: Vllm Vllm.