| Package | Affected versions | Patched versions |
|---|---|---|
| vllm | ≥ 0.20.0, < 0.30.0 | 0.30.0 |
| vllm | ≥ 0.20.0, < 0.30.0 | 0.30.0 |
vLLM from 0.20.0 before 0.30.0 contains a denial of service vulnerability that allows remote attackers to crash the engine by sending inconsistent multimodal metadata to the disaggregated /inference/v1/generate endpoint. Attackers can replay a valid multimodal item with repeated or overlapping mm_placeholders ranges or mismatched kwargs_data and mm_hashes lists, producing a negative text span in Qwen2.5-VL position construction that terminates the engine.
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