CVE-2026-9472Public exploitNetwork attack vector

Authenticated file placement via unchecked path joins

Published May 25, 2026 · Updated May 25, 2026

Path traversal in dazeb Markdown Downloader at commit 3d4394b allows remote authenticated users to write outside the download directory. The download_markdown, list_downloaded_files, and create_subdirectory handlers join untrusted directory values to the configured root, then call writeFile, readdir, or ensureDir without checking the resolved boundary. Access to the configured MCP tools is required; traversal can create directories, enumerate directory entries, and place fetched content wherever the server process can write.

CVSS severity6.3
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in dazeb Markdown Downloader at commit 3d4394b allows remote authenticated users to write outside the download directory. The download_markdown, list_downloaded_files, and create_subdirectory handlers join untrusted directory values to the configured root, then call writeFile, readdir, or ensureDir without checking the resolved boundary. Access to the configured MCP tools is required; traversal can create directories, enumerate directory entries, and place fetched content wherever the server process can write.

The record

CVE
CVE-2026-9472
Published
May 25, 2026
Updated
May 25, 2026
Vendor
dazeb
Product
Markdown Downloader
Classifications
CWE-22, T1083, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 25, 2026CVE publishedPublication date reported by the CVE source.
  2. May 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3d4394b34b6c99d81af817623af55e3384df5a6a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

dazeb · Markdown Downloaderversion=3d4394b34b6c99d81af817623af55e3384df5a6a

Published CVSS scores

6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
2.1VulDBCVSS: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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1083File and Directory Discovery
T1105Ingress Tool Transfer

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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