Advisories

vLLM before 0.29.0 Resource Limit Bypass via Sampler Subclass

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severity
medium
date
Affecting
  • vllm >= 0, < 0.29.0

CWE
  • CWE-770 Allocation of Resources Without Limits or Throttling
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
JPengLi, jperezdealgaba
Description
vLLM before 0.29.0 contains a resource-limit bypass vulnerability in PyNvVideoCodec decoder allocation where sampler subclass shadowing allows independent counter increments. Unauthenticated attackers can select different sampler subclasses in video requests to exceed configured decoder limits and exhaust unaccounted GPU memory.

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