CVE-2026-7272Public exploitNetwork attack vector

Arbitrary file write via unrestricted scriptPath

Published Apr 28, 2026 · Updated Apr 28, 2026

Path traversal in WilliamCloudQi MATLAB MCP Server at ab88f6b9bf5f36f725e8628029f7f6dd0d9913ca allows remote attackers to write arbitrary files. The generate_matlab_code and execute_matlab_code handlers pass the untrusted scriptPath directly to writeFileSync or copyFileSync without enforcing a safe directory. Attackers must be able to invoke an exposed MCP tool, and writes are limited to filesystem paths permitted to the server process.

CVSS severity7.3
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in WilliamCloudQi MATLAB MCP Server at ab88f6b9bf5f36f725e8628029f7f6dd0d9913ca allows remote attackers to write arbitrary files. The generate_matlab_code and execute_matlab_code handlers pass the untrusted scriptPath directly to writeFileSync or copyFileSync without enforcing a safe directory. Attackers must be able to invoke an exposed MCP tool, and writes are limited to filesystem paths permitted to the server process.

The record

CVE
CVE-2026-7272
Published
Apr 28, 2026
Updated
Apr 28, 2026
Vendor
WilliamCloudQi
Product
MATLAB MCP Server
Classifications
CWE-22, T1105
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=ab88f6b9bf5f36f725e8628029f7f6dd0d9913ca

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WilliamCloudQi · MATLAB MCP Serverversion=ab88f6b9bf5f36f725e8628029f7f6dd0d9913ca

Published CVSS scores

7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1105Ingress Tool Transfer

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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