CVE-2026-7593Public exploitNetwork attack vector

Arbitrary command execution via prefix allowlist bypass

Published May 1, 2026 · Updated May 1, 2026

OS command injection in Sunwood AI Labs Command Executor MCP Server 0.1.0 allows remote attackers to execute arbitrary host commands. The execute_command tool checks only the first space-delimited token against its allowlist, then passes the complete untrusted string to child_process.exec for shell interpretation. Exploitation requires access to invoke the MCP tool and one allowed command; appended shell metacharacters run with the server process's privileges.

CVSS severity9.8
Critical
EPSS probability1.36%
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 Sunwood AI Labs Command Executor MCP Server 0.1.0 allows remote attackers to execute arbitrary host commands. The execute_command tool checks only the first space-delimited token against its allowlist, then passes the complete untrusted string to child_process.exec for shell interpretation. Exploitation requires access to invoke the MCP tool and one allowed command; appended shell metacharacters run with the server process's privileges.

The record

CVE
CVE-2026-7593
Published
May 1, 2026
Updated
May 1, 2026
Vendor
Sunwood AI Labs
Product
Command Executor MCP Server
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 1, 2026CVE publishedPublication date reported by the CVE source.
  2. May 1, 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=0.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Sunwood AI Labs · Command Executor MCP Serverversion=0.1.0

Published CVSS scores

9.8GitHub vulnerability disclosureCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-78Improper Neutralization of Special Elements used in an OS Command ('OS 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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