Medium severity5.9NVD Advisory· Published Oct 25, 2026

CVE-2026-116173

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Vllm/Vllmllm-create
Range: 0.22.0 <= x < 0.24.0

Patches

Vulnerability mechanics

References

github.com/vllm-project/vllm/security/advisories/GHSA-6pgw-f3pv-4h8qnvd
www.vulncheck.com/advisories/vllm-0.22.0-before-0.24.0-denial-of-service-via-grpc-output-candidates-token-idsnvd

News mentions

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cvss	0.384
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000