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7.1 High

CVE-2026-116181 vLLM from 0.20.1 before 0.29.0 contains an improper input validation vulnerability that allows remote attackers to crash…

Description

vLLM from 0.20.1 before 0.29.0 contains an improper input validation vulnerability that allows remote attackers to crash the engine by supplying out-of-vocabulary stop_token_ids. Attackers can send OpenAI chat, completion, generate, or batch requests with invalid IDs to terminate the engine or write outside the V2 runner's logits buffer.

Affected products and versions

Product Affected versions Fixed in
vllm 0.29 earliest → < 0.29.0 0.29.0
vllm 0.20 0.20.1 → < 0.29.0 0.29.0

References

Timeline

  1. Published
  2. Last modified

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