Quick answers
- Is CVE-2026-47748 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-47748 being exploited in the wild.
- How severe is CVE-2026-47748?
- Medium severity, with a CVSS score of 5.5, published 16 June 2026.
- Which products and versions are affected?
- Leejet Stable-Diffusion.Cpp < master-584-0a7ae07.
- Is there a fix for CVE-2026-47748?
- A patch was published on 2026-04-19: Fix committed to repository Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-47748 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-47748?
- 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
An out-of-bounds read vulnerability exists in the pickle .ckpt parser within src/model.cpp of stable-diffusion.cpp. The root cause is a failure to validate buffer boundaries; opcode handlers increment the parser position (e.g., buffer += N) without verifying that the new position remains within the allocated metadata buffer. An attacker can exploit this by providing a truncated or malformed PyTorch checkpoint file, leading to a denial-of-service (crash) via an out-of-bounds read. This issue is triggered when an application attempts to load a malicious model file. The vulnerability has been addressed in version master-584-0a7ae07 by implementing restricted checkpoint loading.
Affected products
- leejet stable-diffusion.cpp < master-584-0a7ae07
Timeline
- 2026-04-19: patched: Fix committed to repository
- 2026-05-22: advisory: GitHub Security Advisory published
- 2026-06-16: disclosed: CVE published to NVD