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Advisories

SGLang through 0.5.21 Resource Budget Bypass via GLM-V Video Parameters

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severity
high
date
Affecting

  • sglang <= 0.5.21

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
Jiapeng Li, Jiajia Liu, Jiadai Wang
Description
SGLang through 0.5.21 contains a resource budget bypass vulnerability that allows remote attackers to override GLM-V video processing limits by supplying fps, max_frames, max_tokens_per_frame and max_image_tokens in the video_url object. Attackers can set these values arbitrarily high so glm4v.py decodes every frame of high-resolution video at full size, exhausting worker memory and denying service.

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