CVE-2025-54073Public exploitNetwork attack vector

Remote code execution via shell-interpolated tool arguments

Published Jul 18, 2025 · Updated Jul 22, 2025

Command injection in Sam McLeod mcp-package-docs 0.1.27 and earlier allows remote attackers to execute code via crafted MCP tool arguments. PackageDocsServer interpolates package names and symbols into child_process.exec shell strings without neutralizing metacharacters. Exploitation requires an MCP client or its user to invoke a vulnerable documentation tool with attacker-controlled input; commands run with the server process's privileges.

CVSS severity7.5
High
EPSS probability9.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Sam McLeod mcp-package-docs 0.1.27 and earlier allows remote attackers to execute code via crafted MCP tool arguments. PackageDocsServer interpolates package names and symbols into child_process.exec shell strings without neutralizing metacharacters. Exploitation requires an MCP client or its user to invoke a vulnerable documentation tool with attacker-controlled input; commands run with the server process's privileges.

The record

CVE
CVE-2025-54073
Published
Jul 18, 2025
Updated
Jul 22, 2025
Vendor
Sam McLeod
Product
mcp-package-docs
Classifications
CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 22, 2025Record 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=< 0.1.27

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Sam McLeod · mcp-package-docsversion=< 0.1.27

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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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