Bug 2560420 (CVE-2026-116173) - CVE-2026-116173 vllm: vllm: Denial of Service via excessive candidate token IDs in gRPC interface
Summary: CVE-2026-116173 vllm: vllm: Denial of Service via excessive candidate token I...
Keywords:
Status: NEW
Alias: CVE-2026-116173
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-25 13:33 UTC by OSIDB Bzimport
Modified: 2026-10-25 13:50 UTC (History)
5 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-25 13:33:32 UTC 
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.
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