CVE-2026-47750
stable-diffusion.cpp: Heap buffer overflow in GLOBAL opcode parsing for PyTorch checkpoint files
Description
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.
INFO
Published Date :
June 16, 2026, 8:16 p.m.
Last Modified :
Oct. 25, 2026, 11:10 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update stable-diffusion.cpp library to master-584-0a7ae07.
- Do not load .ckpt files from untrusted sources.
- Prefer safer formats like .safetensors.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-47750.
| URL | Resource |
|---|---|
| https://github.com/leejet/stable-diffusion.cpp/commit/0a7ae07f948eff4611968a65a22bd7c7031ad74f | Patch |
| https://github.com/leejet/stable-diffusion.cpp/pull/1443 | Issue Tracking Patch |
| https://github.com/leejet/stable-diffusion.cpp/security/advisories/GHSA-v37x-jwp7-mcvc | Exploit Mitigation Vendor Advisory |
| https://github.com/leejet/stable-diffusion.cpp/security/advisories/GHSA-v37x-jwp7-mcvc | Exploit Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-47750 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-47750
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-47750 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-47750 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 25, 2026
Action Type Old Value New Value Added Translation Title: stable-diffusion.cpp de leejet, Description: stable-diffusion.cpp es una biblioteca pura de C/C++ para ejecutar inferencia de modelos de difusión (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image y más). En versiones anteriores a master-584-0a7ae07, el analizador pickle .ckpt en src/model.cpp contenía una vulnerabilidad de desbordamiento de búfer de pila en el gestor del código de operación GLOBAL. El problema fue causado por la falta de validación al buscar campos delimitados por nueva línea. Un archivo .ckpt manipulado sin la nueva línea esperada podría hacer que el analizador usara -1 como longitud de copia, lo que resultaría en una corrupción inmediata de la pila. El ataque requiere que la víctima o la aplicación cargue un archivo .ckpt de una fuente no confiable, como un modelo descargado de un sitio de intercambio de modelos. El problema ha sido resuelto en la versión master-584-0a7ae07. Si los desarrolladores no pueden actualizar inmediatamente sus aplicaciones, pueden solucionar este problema siguiendo estas instrucciones: no cargar archivos de punto de control .ckpt de fuentes no confiables, y preferir fuentes de modelos confiables y formatos más seguros como .safetensors cuando sea posible. -
Initial Analysis by [email protected]
Jun. 25, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:leejet:stable-diffusion.cpp:*:*:*:*:*:c++:*:* versions up to (excluding) master-584-0a7ae07 Added Reference Type GitHub, Inc.: https://github.com/leejet/stable-diffusion.cpp/commit/0a7ae07f948eff4611968a65a22bd7c7031ad74f Types: Patch Added Reference Type GitHub, Inc.: https://github.com/leejet/stable-diffusion.cpp/pull/1443 Types: Issue Tracking, Patch Added Reference Type GitHub, Inc.: https://github.com/leejet/stable-diffusion.cpp/security/advisories/GHSA-v37x-jwp7-mcvc Types: Exploit, Mitigation, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/leejet/stable-diffusion.cpp/security/advisories/GHSA-v37x-jwp7-mcvc Types: Exploit, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added Reference https://github.com/leejet/stable-diffusion.cpp/security/advisories/GHSA-v37x-jwp7-mcvc Added SSVC {'id': 'CVE-2026-47750', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-06-17T13:55:19.988917Z'} -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'leejet', 'product': 'stable-diffusion.cpp', 'versions': [{'status': 'affected', 'version': '< master-584-0a7ae07'}]}] -
New CVE Received by [email protected]
Jun. 16, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-787 Added Reference https://github.com/leejet/stable-diffusion.cpp/commit/0a7ae07f948eff4611968a65a22bd7c7031ad74f Added Reference https://github.com/leejet/stable-diffusion.cpp/pull/1443 Added Reference https://github.com/leejet/stable-diffusion.cpp/security/advisories/GHSA-v37x-jwp7-mcvc