CVE-2026-116173
vLLM 0.22.0 before 0.24.0 Denial of Service via gRPC output_candidates.token_ids
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-20 |
| Vendor | vllm-project |
| Product | vllm |
| Published | Oct 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
vllm-project / vllm
0.22.0 < 0.24.0
References
Credits
🔍 rexpository jperezdealgaba