CVE-2026-19978Public exploit

Local command execution via ADB argument injection

Published Aug 17, 2026 · Updated Aug 17, 2026

OS command injection in jiantao88 Android MCP Server through cfb872b allows local users to execute arbitrary commands via MCP tool arguments. In src/index.ts, executeAdbCommand concatenates deviceId and command strings such as packageName, permission, and extras fields into one adb command and passes it to child_process.exec, and the fix replaces that flow with execFile plus per-argument shell quoting. Reachability requires access to the locally configured MCP server, and the published calc.exe proof of concept shows code execution on the host even when no Android device is attached.

CVSS severityUnavailable
Unscored
EPSS probability0.69%
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 jiantao88 Android MCP Server through cfb872b allows local users to execute arbitrary commands via MCP tool arguments. In src/index.ts, executeAdbCommand concatenates deviceId and command strings such as packageName, permission, and extras fields into one adb command and passes it to child_process.exec, and the fix replaces that flow with execFile plus per-argument shell quoting. Reachability requires access to the locally configured MCP server, and the published calc.exe proof of concept shows code execution on the host even when no Android device is attached.

The record

CVE
CVE-2026-19978
Published
Aug 17, 2026
Updated
Aug 17, 2026
Vendor
jiantao88
Product
Android MCP Server
Classifications
CWE-78, CWE-77, T1059
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 17, 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=cfb872b2446794193b58edd63f4dbf6af48a6292

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

jiantao88 · Android MCP Serverversion=cfb872b2446794193b58edd63f4dbf6af48a6292

Published CVSS scores

4.3VulDB CNAAV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C
4.8VulDB CNACVSS: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
5.3VulDB CNACVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
5.3VulDB CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78OS Command Injection
CWE-77Command 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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