# CVE-2026-111645: MrDoc through 1.1.1 Missing Authorization via api/import_local_doc/ Endpoint

> Authenticated users can modify other users' documents and projects due to missing object-level authorization in the ImportLocalDoc API.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Oct 2026
- **Updated:** 19 Oct 2026
- **Also known as:** GHSA-x63c-25rw-gwj4

## What is CVE-2026-111645?

CVE-2026-111645 is a medium-severity missing authorization vulnerability in zmister2016 MrDoc, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

MrDoc through 1.1.1 contains a missing object-level authorization vulnerability in the ImportLocalDoc API that allows authenticated users to modify other users' documents and projects. Attackers can send PUT requests with arbitrary sort_data document ids to publish private drafts and reparent documents, or POST with arbitrary top_doc ids to inject documents.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-111645?


## How do I fix CVE-2026-111645?

No fix has been published for CVE-2026-111645 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-111645 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111645 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-111645 and fix it if it is affected.

What it is: CVE-2026-111645 is a medium-severity missing authorization vulnerability in zmister2016 MrDoc, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111645 exists.

Affected product: zmister2016 MrDoc. 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-2026-111645/ (Markdown: https://insights.sbomify.com/CVE-2026-111645/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111645
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111645
- OSV: https://osv.dev/vulnerability/CVE-2026-111645

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111645/
Summaries are generated and may contain mistakes; the official description above is the record.