CVE-2026-6118Public exploitNetwork attack vector

Authenticated command execution via MCP connection test

Published Apr 12, 2026 · Updated Apr 12, 2026

Command injection in AstrBot 4.22.1 and earlier allows remote authenticated users to execute system commands through the MCP API. The add_mcp_server function in astrbot/dashboard/routes/tools.py copies attacker-controlled command and args fields into a server configuration, then test_mcp_server_connection launches them as a subprocess. A valid dashboard JWT is required, and commands run with the privileges of the AstrBot service process, enabling access to its data and host resources.

CVSS severity8.8
High
EPSS probability2.53%
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 AstrBot 4.22.1 and earlier allows remote authenticated users to execute system commands through the MCP API. The add_mcp_server function in astrbot/dashboard/routes/tools.py copies attacker-controlled command and args fields into a server configuration, then test_mcp_server_connection launches them as a subprocess. A valid dashboard JWT is required, and commands run with the privileges of the AstrBot service process, enabling access to its data and host resources.

The record

CVE
CVE-2026-6118
Published
Apr 12, 2026
Updated
Apr 12, 2026
Vendor
AstrBotDevs
Product
AstrBot
Classifications
CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 12, 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=4.22.0
  2. Affected versionversion=4.22.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

AstrBotDevs · AstrBotversion=4.22.0; version=4.22.1

Published CVSS scores

8.8August829CVSS:3.1/AV:N/AC:L/PR:L/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.

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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code 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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