Quick answers
- Is CVE-2026-47750 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-47750 being exploited in the wild.
- How severe is CVE-2026-47750?
- High severity, with a CVSS score of 7.8, published 16 June 2026.
- Which products and versions are affected?
- Leejet Stable-Diffusion.Cpp prior to master-584-0a7ae07.
- Is there a fix for CVE-2026-47750?
- A patch was published on 2026-04-19: Fix committed to master branch Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-47750 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-47750?
- Check whether you run Leejet Stable-Diffusion.Cpp at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A heap buffer overflow exists in the pickle .ckpt parser within src/model.cpp, specifically in the GLOBAL opcode handler. The vulnerability is caused by missing validation when searching for newline-delimited fields using find_char(). If a crafted .ckpt file lacks the expected newline, find_char() returns -1, which is then passed to memcpy() as a length argument. Because memcpy() expects a size_t, the -1 is interpreted as a very large unsigned integer (SIZE_MAX), leading to immediate heap corruption. Exploitation requires a user to load a malicious model file. The issue was addressed in version master-584-0a7ae07 by implementing restricted checkpoint loading.
Affected products
- leejet stable-diffusion.cpp prior to master-584-0a7ae07
Timeline
- 2026-04-19: patched: Fix committed to master branch
- 2026-05-22: advisory: GitHub Security Advisory published
- 2026-06-16: disclosed: CVE published to NVD