# CVE-2026-109635: Frappe ERPNext before 15.105.0 Missing Authorization in Document Creation Endpoints

> Authenticated portal users can create documents on behalf of other parties due to missing authorization checks in document creation endpoints.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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:** 12 Oct 2026
- **Updated:** 18 Oct 2026
- **Also known as:** GHSA-562g-3qrh-3w2f, GHSA-fqgg-9c42-jq28

## What is CVE-2026-109635?

CVE-2026-109635 is a medium-severity missing authorization vulnerability in frappe erpnext, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Frappe ERPNext before 15.105.0 and 16.x before 16.15.0 contains a missing authorization vulnerability in certain document creation endpoints that fail to verify that the requesting portal user belongs to the target party. Authenticated portal users can send requests to these endpoints to create documents on behalf of parties other than their own.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-109635?


## How do I fix CVE-2026-109635?

No fix has been published for CVE-2026-109635 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-109635 being exploited?

There is no known exploitation of CVE-2026-109635 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-109635 and fix it if it is affected.

What it is: CVE-2026-109635 is a medium-severity missing authorization vulnerability in frappe erpnext, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-109635 in the wild and no public exploit code.

Affected product: frappe erpnext. 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-2026-109635/ (Markdown: https://insights.sbomify.com/CVE-2026-109635/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-109635
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-109635
- OSV: https://osv.dev/vulnerability/CVE-2026-109635

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-109635/
Summaries are generated and may contain mistakes; the official description above is the record.