High severity · published Oct 25, 2026
CVE-2026-116176
vLLM 0.9.2 before 0.24.0 SSRF via X-Request-Id in P2pNcclConnector
New
8.2
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VL
vllm · vllm-project
0.9.2 before 0.24.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116176
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116176
github.com
https://github.com/vllm-project/vllm/security/advisories/GHSA-vfp2-c8pq-v6h6
www.vulncheck.com
https://www.vulncheck.com/advisories/vllm-0.9.2-before-0.24.0-ssrf-via-x-request-id-in-p2pncclconnector
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