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Advisories

vLLM 0.18.0 before 0.31.0 Memory Exhaustion via media_io_kwargs num_frames Override

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Severity
high
Date
Affecting

  • vllm >= 0.18.0, < 0.31.0

CWE
  • CWE-770 Allocation of Resources Without Limits or Throttling
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
tonghuaroot, jperezdealgaba
Description
vLLM from 0.18.0 before 0.31.0 contains a resource exhaustion vulnerability that allows API clients to bypass the video/jpeg frame-count cap by overriding num_frames through media_io_kwargs. Attackers can set num_frames to -1 with a large inline video so VideoMediaIO.load_base64 decodes every frame, exhausting memory and crashing the API frontend.

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