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7.9
CVE-2026-9472: dazeb markdown-downloader can let attackers read any file
CVE-2026-9472 · published 5 months ago
Summary
The markdown-downloader program has a bug in the routine that creates subfolders for downloaded files. This lets a remote user craft a request that makes the program access files outside its own folder, exposing data it shouldn't. Apply any released update or stop using the tool and limit its input until the code is corrected.
Original advisory text
dazeb markdown-downloader index.ts create_subdirectory path traversal
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.
References
- https://github.com/dazeb/markdown-downloader/ URL
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9472.j... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-9472 Vendor Advisory
- https://vuldb.com/submit/814000 Vendor Advisory
- https://vuldb.com/vuln/365453 Vendor Advisory
- https://github.com/dazeb/markdown-downloader/issues/12 Third Party Advisory
- https://vuldb.com/vuln/365453/cti Third Party Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker partial control (estimated)
Severity
7.9
High
Type
CWE-22Path Traversal
Timeline
Published25 May 2026
Updated4 Nov 2026
First seen26 May 2026
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