CVE-2026-47747— leejet stable-diffusion.cpp 缓冲区错误漏洞

stable-diffusion.cpp has a Heap-based Buffer Overflow

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 BINUNICODE opcode handler. The issue was caused by sign confusion on the opcode length field. A crafted .ckpt file could trigger memcpy with a very large length derived from a negative signed value, causing immediate heap corruption. 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 only loading .ckpt checkpoint files from trusted sources and preferring 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

堆缓冲区溢出

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解析器的BINUNICODE操作码处理程序存在堆缓冲区溢出，由操作码长度字段的符号混乱导致，特制.ckpt文件可能触发memcpy使用负值推导出的超大长度，导致堆破坏。

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