CVE-2026-109228
highSGLang through 0.5.21 contains a resource budget bypass vulnerability that allows remote attackers to override GLM-V video processing limits by supplying fps,…
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/sgl-project/sglang disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/entrypoints/openai/pr... disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/multimodal/processors... disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/multimodal/processors... disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/parser/conversation.p... disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/issues/43705 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/sglang-through-0.5.21-resource-budget-bypass-via-glm-... disclosure@vulncheck.com