Quick answers
- Is CVE-2026-111986 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-111986 being exploited in the wild.
- How severe is CVE-2026-111986?
- Medium severity, with a CVSS score of 6.3, published 18 October 2026.
- Which products and versions are affected?
- AUTOMATIC1111 Stable Diffusion WebUI up to 1.10.1.
- Is there a fix for CVE-2026-111986?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-111986 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-111986?
- Check whether you run AUTOMATIC1111 Stable Diffusion WebUI 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
The vulnerability exists in the model instantiation logic (modules/sd_models.py, get_obj_from_str function) which resolves the model.target parameter from YAML configuration files using importlib and getattr, then invokes the resolved object with user-supplied parameters. An attacker can place a malicious YAML sidecar file with the same basename as a checkpoint to trigger arbitrary code execution when the model is loaded. The attack requires a victim to select or load the malicious model through the UI.
Affected products
- AUTOMATIC1111 stable-diffusion-webui up to 1.10.1
Timeline
- 2026-09-30: disclosed: Issue reported on GitHub
- 2026-10-18: advisory