leejet stable-diffusion.cpp Safetensors Loader safetensors_io.cpp data_offsets out-of-bounds

Summaryinfo

A vulnerability was found in leejet stable-diffusion.cpp. It has been classified as critical. This affects an unknown part of the file src/model_io/safetensors_io.cpp of the component Safetensors Loader. Performing a manipulation of the argument data_offsets results in out-of-bounds. This vulnerability is cataloged as CVE-2026-70660. It is possible to initiate the attack remotely. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as critical, was found in leejet stable-diffusion.cpp (unknown version). This affects an unknown code block of the file src/model_io/safetensors_io.cpp of the component Safetensors Loader. The manipulation of the argument data_offsets with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inference. Prior to master-764-e22272e, the safetensors loader in src/model_io/safetensors_io.cpp trusts each tensor's data_offsets after checking only that nbytes equals end - begin. A crafted .safetensors file can declare a byte range beyond the file's data section, causing src/model_loader.cpp to consume an attacker-chosen length from an unchecked mapped-file offset. Loading the model can read adjacent process memory into tensor buffers or crash the process. This issue is fixed in master-764-e22272e.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-70660 since 08/04/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Applying the patch master-764-e22272e is able to eliminate this problem.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• leejet

Name

• stable-diffusion.cpp

Website

• Product: https://github.com/leejet/stable-diffusion.cpp/

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