# CVE-2026-111985: Denial of service in stable-diffusion-webui

> Remote attackers can cause resource exhaustion and denial of service in AUTOMATIC1111 stable-diffusion-webui via crafted safetensors metadata headers.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Oct 2026
- **Updated:** 19 Oct 2026
- **Also known as:** GHSA-q7gh-5v92-ww7h

## What is CVE-2026-111985?

CVE-2026-111985 is a medium-severity denial of service vulnerability in AUTOMATIC1111 stable-diffusion-webui, published on 18 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability was found in AUTOMATIC1111 stable-diffusion-webui up to 1.10.1. This impacts the function read_metadata_from_safetensors of the file modules/sd_models.py of the component Metadata Extraction. The manipulation of the argument header length field results in allocation of resources. It is possible to launch the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling), CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2026-111985?


## How do I fix CVE-2026-111985?

No fix has been published for CVE-2026-111985 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-111985 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111985 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-111985 and fix it if it is affected.

What it is: CVE-2026-111985 is a medium-severity denial of service vulnerability in AUTOMATIC1111 stable-diffusion-webui, published on 18 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111985 exists.

Affected product: AUTOMATIC1111 stable-diffusion-webui. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-111985/ (Markdown: https://insights.sbomify.com/CVE-2026-111985/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111985
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111985
- OSV: https://osv.dev/vulnerability/CVE-2026-111985

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111985/
Summaries are generated and may contain mistakes; the official description above is the record.