Vulnerability Details CVE-2026-116173
vLLM from 0.22.0 before 0.24.0 contains a denial of service vulnerability that allows remote attackers to terminate EngineCore by bypassing logprob_token_ids limits in the Rust gRPC frontend. Attackers can send Generate or GenerateStream requests with output_logprobs enabled and more than 128 output_candidates.token_ids, triggering a fatal sampler exception that crashes the engine.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 28.3%
CVSS Severity
CVSS v3 Score 5.9
References