CVE-2026-19332

Local command execution via shell-interpolated file paths

Published Aug 9, 2026 · Updated Aug 9, 2026

Command injection in NellyW8 MCP4EDA 1.0.0 allows local users with MCP tool access to execute host commands via crafted tool arguments. The run_openlane and view_waveform handlers interpolate design_name and vcd_file-derived paths into shell strings passed to Node child-process exec without neutralizing quotes or shell syntax. Access to either MCP tool is required, and successful exploitation runs commands with the host privileges of the MCP server process.

CVSS severity5.3
Medium
EPSS probability0.62%
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 NellyW8 MCP4EDA 1.0.0 allows local users with MCP tool access to execute host commands via crafted tool arguments. The run_openlane and view_waveform handlers interpolate design_name and vcd_file-derived paths into shell strings passed to Node child-process exec without neutralizing quotes or shell syntax. Access to either MCP tool is required, and successful exploitation runs commands with the host privileges of the MCP server process.

The record

CVE
CVE-2026-19332
Published
Aug 9, 2026
Updated
Aug 9, 2026
Vendor
NellyW8
Product
MCP4EDA
Classifications
CWE-77, CWE-74, T1059
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 9, 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=1.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

NellyW8 · MCP4EDAversion=1.0.0

Published CVSS scores

5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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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