CVE-2026-7653Public exploitNetwork attack vector

Host command execution via unsanitized imageUrl

Published May 2, 2026 · Updated May 2, 2026

OS command injection in R.Huijts Rijksmuseum MCP Server 1.0.0 through 1.0.4 allows remote authenticated users to execute host commands. The open_image_in_browser tool passes its imageUrl argument through only a type check before SystemIntegration builds a quoted command string for child_process.exec. Any user able to invoke the MCP tool can escape the quoted URL with shell metacharacters and run commands with the server process's privileges.

CVSS severity6.3
Medium
EPSS probability1.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in R.Huijts Rijksmuseum MCP Server 1.0.0 through 1.0.4 allows remote authenticated users to execute host commands. The open_image_in_browser tool passes its imageUrl argument through only a type check before SystemIntegration builds a quoted command string for child_process.exec. Any user able to invoke the MCP tool can escape the quoted URL with shell metacharacters and run commands with the server process's privileges.

The record

CVE
CVE-2026-7653
Published
May 2, 2026
Updated
May 2, 2026
Vendor
R.Huijts
Product
Rijksmuseum MCP Server
Classifications
CWE-78, CWE-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

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

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0.0
  2. Affected versionversion=1.0.1
  3. Affected versionversion=1.0.2
  4. Affected versionversion=1.0.3
  5. Affected versionversion=1.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

R.Huijts · Rijksmuseum MCP Serverversion=1.0.0; version=1.0.1; version=1.0.2; version=1.0.3; version=1.0.4

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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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