Vulnerability Details CVE-2026-116172
vLLM from 0.22.0 before 0.24.0 contains an improper input validation vulnerability in the Rust gRPC converter that allows remote attackers to bypass max_logprobs limits via CandidateTokens.top_n. Attackers can send Generate or GenerateStream requests with oversized or integer-wrapping top_n values to trigger torch.topk failures that terminate EngineCore.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 28.3%
CVSS Severity
CVSS v3 Score 5.9
References