Sgl-project
CVE-2026-109227: SGLang through 0.5.21 contains an unbounded memory allocation vulnerability in preprocess_video in qwen_vl.py that decodes frames at full source resolution befo
CVE-2026-109227 Oct 12, 2026 Source: Vendor
SGLang through 0.5.21 contains an unbounded memory allocation vulnerability in preprocess_video in qwen_vl.py that decodes frames at full source resolution before applying max_pixels limits. Remote attackers can submit high-resolution videos to /v1/chat/completions on Qwen-VL deployments, and concurrent requests exhaust worker memory causing denial of service.
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-109227
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Credited
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CVE-2026-109227
BR2026-0000-026694
unclaimed
Credited as Jiapeng Li
CVE-2026-109227
BR2026-0000-026695
unclaimed
Credited as Jiajia Liu
CVE-2026-109227
BR2026-0000-026696
unclaimed
Credited as Jiadai Wang