OS Command Injection Flaw in MCP Interface of r-huijts Product
CVE-2026-7653

5.3MEDIUM

Key Information:

Vendor

R-huijts

Status
Mcp-server-rijksmuseum
Vendor
CVE Published:
2 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7653?

A security flaw exists in the MCP Interface of r-huijts mcp-server-rijksmuseum versions up to 1.0.4 due to improper handling of the imageUrl argument in the open_image_in_browser function. This vulnerability enables attackers to execute arbitrary operating system commands remotely, potentially compromising the affected system. Despite early notification of the issue, the vendor has yet to address the problem, leaving systems at risk of exploitation.

Affected Version(s)

mcp-server-rijksmuseum 1.0.0

mcp-server-rijksmuseum 1.0.1

mcp-server-rijksmuseum 1.0.2

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-2026-7653 - Proof of Concept

References

https://vuldb.com/vuln/360778
vdb-entrytechnical-description
https://vuldb.com/vuln/360778/cti
signaturepermissions-required
https://vuldb.com/submit/806909
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
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

BruceJqs (VulDB User)
VulDB CNA Team
.