CVE-2026-47750— leejet stable-diffusion.cpp 缓冲区错误漏洞

stable-diffusion.cpp: Heap buffer overflow in GLOBAL opcode parsing for PyTorch checkpoint files

stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inference. In versions prior to master-584-0a7ae07, the pickle .ckpt parser in src/model.cpp contained a heap buffer overflow vulnerability in the GLOBAL opcode handler. The issue was caused by missing validation when searching for newline-delimited fields. A crafted .ckpt file without the expected newline could cause the parser to use -1 as a copy length, resulting in immediate heap corruption. The attack requires the victim or application to load a .ckpt file from an untrusted source, such as a downloaded model from a model sharing site. The issue has been resolved in version master-584-0a7ae07. If developers are unable to immediately update their applications they can work around this issue by following these instructions: do not load .ckpt checkpoint files from untrusted sources, and prefer trusted model sources and safer formats such as .safetensors where possible.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

跨界内存写

leejet stable-diffusion.cpp 缓冲区错误漏洞

stable-diffusion.cpp是leejet个人开发者的一种基于C++的纯推理扩散模型实现。 leejet stable-diffusion.cpp存在缓冲区错误漏洞，该漏洞源于src/model.cpp中pickle .ckpt解析器在处理GLOBAL操作码时存在堆缓冲区溢出，由搜索换行符分隔字段时缺少验证导致，攻击者通过特制.ckpt文件可能造成堆损坏。

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