CVE-2026-116174

EUVD-2026-109435
vLLM from 0.22.0 before 0.24.0 contains an improper input validation vulnerability in the Rust gRPC Generate and GenerateStream service that forwards unchecked prompt token IDs to EngineCore. Attackers can submit requests with out-of-vocabulary prompt.token_ids values to trigger a fatal embedding lookup failure that terminates EngineCore and leaves the server unhealthy.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
vllmvllm
0.22.0 ≤
𝑥
< 0.24.0
CNA
Common Weakness Enumeration
References
https://github.com/vllm-project/vllm/security/advisories/GHSA-w2v2-5662-8v5q
https://www.vulncheck.com/advisories/vllm-0.22.0-before-0.24.0-denial-of-service-via-rust-grpc-generate