Path Traversal Vulnerability in lharries WhatsApp-mcp Send API Endpoint
CVE-2026-10264

5.1MEDIUM

Key Information:

Vendor

Lharries

Status
WhatSAPp-mcp
Vendor
CVE Published:
1 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-10264?

A vulnerability has been identified in the Send API Endpoint of lharries' WhatsApp-mcp version 0.0.1. This issue arises from improper validation within the SendMessageRequest function in the main.go file, where manipulation of the mediaPath argument leads to path traversal. As a result, unauthorized users can potentially access restricted files on the server. This vulnerability has been publicly disclosed and is actively being exploited. Users are strongly advised to apply the patch (commit 6657cdceadd361e8fbe824afe9d00b4504009a5d) to mitigate the risks associated with this security flaw.

Affected Version(s)

whatsapp-mcp 0.0.1

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-2026-10264 - Proof of Concept

References

https://vuldb.com/vuln/367544
vdb-entrytechnical-description
https://vuldb.com/vuln/367544/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-10264
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ybdesire (VulDB User)
.