CVE-2026-94044Public exploitNetwork attack vector

Arbitrary file write via unchecked path join

Published Sep 20, 2026 · Updated Sep 20, 2026

Path traversal in 03-lovepreetSingh MCP commit f95d035c5317fad81af9828286631053ccb23546 allows remote attackers to write server files. The create_file tool joins attacker-controlled filePath data to the uploads directory and passes the result to fs.writeFile without checking the resolved boundary. Access to the MCP interface is sufficient to create or overwrite any file writable by the server process, enabling configuration or source corruption and service interruption.

CVSS severityUnavailable
Unscored
EPSS probability0.61%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in 03-lovepreetSingh MCP commit f95d035c5317fad81af9828286631053ccb23546 allows remote attackers to write server files. The create_file tool joins attacker-controlled filePath data to the uploads directory and passes the result to fs.writeFile without checking the resolved boundary. Access to the MCP interface is sufficient to create or overwrite any file writable by the server process, enabling configuration or source corruption and service interruption.

The record

CVE
CVE-2026-94044
Published
Sep 20, 2026
Updated
Sep 20, 2026
Vendor
03-lovepreetSingh
Product
MCP
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 20, 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=f95d035c5317fad81af9828286631053ccb23546

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

03-lovepreetSingh · MCPversion=f95d035c5317fad81af9828286631053ccb23546

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
7.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.9VulDBCVSS: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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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')
T1190Exploit Public-Facing Application

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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