RCE in Automatic1111 Stable-Diffusion-Webui
CVE-2026-111986
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.
Published .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Automatic1111 Stable-Diffusion-Webui — versions 1.10.0, 1.10.1
Weakness classification (CWE)
References
- github.com/AUTOMATIC1111/stable-diffusion-webui/ (product)
- github.com/AUTOMATIC1111/stable-diffusion-webui/issues/17499 (issue-tracking)
- github.com/user-attachments/files/32834193/a1111-yaml-target-poc.zip (exploit)
- vuldb.com/cve/CVE-2026-111986 (third-party-advisory)
- vuldb.com/submit/1006657 (third-party-advisory)
- vuldb.com/vuln/421652 (technical-description, vdb-entry)
- vuldb.com/vuln/421652/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-111986?
- CVE-2026-111986 is a medium-severity vulnerability in Automatic1111 Stable-Diffusion-Webui, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-10-18.
- How severe is CVE-2026-111986?
- Medium severity. CVSS v3 base score is 6.3 out of 10.