Local Execution Vulnerability in zcaceres markdownify-mcp Product
CVE-2026-14702

2LOW

Key Information:

Vendor

Zcaceres

Status
Markdownify-mcp
Vendor
CVE Published:
5 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-14702?

A vulnerability exists in the zcaceres markdownify-mcp product, specifically within the saveToTempFile function found in the src/Markdownify.ts component. This flaw leads to insufficiently random values, enhancing the risk of local execution attacks. The complexity of exploiting this weakness is high, necessitating advanced skills and knowledge. Although the exploit has been publicly available, it requires substantial effort for successful execution. A pull request aimed at addressing this vulnerability is currently pending acceptance.

Affected Version(s)

markdownify-mcp 1.0

markdownify-mcp 1.1.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-14702 - Proof of Concept

References

https://vuldb.com/vuln/376298
vdb-entrytechnical-description
https://vuldb.com/vuln/376298/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-14702
third-party-advisory

CVSS V4

Score:
2
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dem0000000 (VulDB User)
VulDB CNA Team
.