# CVE-2026-9472: dazeb markdown-downloader index.ts create_subdirectory path traversal

> Remote attackers can exploit a path traversal flaw in the markdown-downloader library to read or modify files outside the intended directory.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **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:** 25 May 2026
- **Updated:** 27 May 2026
- **Also known as:** GHSA-2wcg-qvrr-vf6j

## What is CVE-2026-9472?

CVE-2026-9472 is a medium-severity path traversal vulnerability in dazeb markdown-downloader, published on 25 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A flaw has been found in dazeb markdown-downloader up to 3d4394b34b6c99d81af817623af55e3384df5a6a. Affected is the function download_markdown/list_downloaded_files/create_subdirectory of the file src/index.ts. Executing a manipulation can lead to path traversal. The attack can be launched remotely. The exploit has been published and may be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-9472?


## How do I fix CVE-2026-9472?

No fix has been published for CVE-2026-9472 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9472 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9472 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-9472 and fix it if it is affected.

What it is: CVE-2026-9472 is a medium-severity path traversal vulnerability in dazeb markdown-downloader, published on 25 May 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-2026-9472 exists.

Affected product: dazeb markdown-downloader. 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-2026-9472/ (Markdown: https://insights.sbomify.com/CVE-2026-9472/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9472
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9472
- OSV: https://osv.dev/vulnerability/CVE-2026-9472

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-9472/
Summaries are generated and may contain mistakes; the official description above is the record.