Code Injection Vulnerability in AUTOMATIC1111 stable-diffusion-webui Software
CVE-2026-111986

5.3MEDIUM

Key Information:

Vendor: Automatic1111
Status: Stable-diffusion-webui
Vendor: CVE Published:; 18 October 2026

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👾 Exploit Exists🟡 Public PoC

What is CVE-2026-111986?

A code injection vulnerability exists in the AUTOMATIC1111 stable-diffusion-webui software that affects versions up to 1.10.1. The issue lies within the get_obj_from_str function of the sd_models.py file, specifically during model instantiation. This vulnerability allows remote attackers to inject arbitrary code through manipulation of the Target argument. As a result, this security flaw poses a significant risk, particularly since it has been publicly disclosed and can be exploited. Though the AUTOMATIC1111 team was notified of this issue via an issue report, they have yet to respond.

Affected Version(s)

stable-diffusion-webui 1.10.0

stable-diffusion-webui 1.10.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-111986 - Proof of Concept