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CVE-2026-14699— zcaceres markdownify-mcp Markdownify.ts assertPathAllowed symlink

Quick assessment

Affected
zcaceres markdownify-mcp
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

zcaceres markdownify-mcp是zcaceres个人开发者的一款网页内容格式转换工具。 zcaceres markdownify-mcp 1.1.0及之前版本存在后置链接漏洞，该漏洞源于src/Markdownify.ts文件中的assertPathAllowed函数问题，可能导致本地攻击者执行操纵后造成符号链接跟随。

CVSS 3.3 · Low EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 2

VendorProduct Version RangeStatus
zcaceres markdownify-mcp 1.0 affected
1.1.0 affected
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I. Basic Information for CVE-2026-14699

Vulnerability Information
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Vulnerability Title
zcaceres markdownify-mcp Markdownify.ts assertPathAllowed symlink
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in zcaceres markdownify-mcp up to 1.1.0. The affected element is the function assertPathAllowed of the file src/Markdownify.ts. Executing a manipulation can lead to symlink following. The attack can only be executed locally. The pull request to fix this issue awaits acceptance.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
zcaceres markdownify-mcp 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
zcaceres markdownify-mcp是zcaceres个人开发者的一款网页内容格式转换工具。 zcaceres markdownify-mcp 1.1.0及之前版本存在后置链接漏洞，该漏洞源于src/Markdownify.ts文件中的assertPathAllowed函数问题，可能导致本地攻击者执行操纵后造成符号链接跟随。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
zcaceres markdownify-mcp 1.0 cpe:2.3:a:zcaceres:markdownify-mcp:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-14699

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III. Intelligence Information for CVE-2026-14699

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Patches & Fixes for CVE-2026-14699 (1)

Vendor Advisories for CVE-2026-14699 (1)

Other References for CVE-2026-14699 (1)

IV. Related Vulnerabilities

Same product: markdownify-mcp
Same vendor: zcaceres
Same weakness: CWE-61

V. Comments for CVE-2026-14699

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