CVE-2026-7066: choieastsea simple-openstack-mcp OS Command Injection
The National Vulnerability Database (NVD) has documented CVE-2026-7066, a high-severity OS command injection vulnerability (CVSS 7.3) in choieastsea simple-openstack-mcp up to commit 767b2f4a8154cca344344b9725537a58399e6036. This flaw, located in the exec_openstack function within the server.py file, allows for remote code execution. Attackers can exploit this without authentication, making it a critical threat.
The exploit has been publicly disclosed, significantly increasing the risk of active attacks. NVD notes that the project, which uses a rolling release model, was informed of the vulnerability but has not yet responded or provided specific version details for affected or patched releases. This lack of vendor response leaves users exposed and without clear remediation guidance.
Defenders leveraging choieastsea simple-openstack-mcp must recognize this as an unpatched, high-risk vulnerability. The public exploit and remote attack vector mean this isn’t theoretical; it’s a clear and present danger. An attacker’s calculus here is simple: find an exposed instance, execute arbitrary commands, and gain control. This is a direct path to system compromise, data exfiltration, or further lateral movement within an OpenStack environment.
What This Means For You
- If your organization uses `choieastsea simple-openstack-mcp`, assume you are vulnerable to CVE-2026-7066. There is no patch available, and the exploit is public. Immediately identify all instances of this software. Consider isolating them or implementing stringent network access controls to mitigate the remote execution risk. Prepare for potential compromise and monitor for anomalous activity.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-7066: OS Command Injection in simple-openstack-mcp server.py
title: CVE-2026-7066: OS Command Injection in simple-openstack-mcp server.py
id: scw-2026-04-27-ai-1
status: experimental
level: critical
description: |
Detects attempts to exploit CVE-2026-7066 by targeting the '/exec_openstack' endpoint with common command injection characters in the query string. This vulnerability in choieastsea simple-openstack-mcp's server.py allows remote attackers to inject and execute arbitrary operating system commands.
author: SCW Feed Engine (AI-generated)
date: 2026-04-27
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-7066/
tags:
- attack.execution
- attack.t1059.004
logsource:
category: webserver
detection:
selection:
cs-uri:
- '/exec_openstack'
cs-method:
- 'POST'
cs-uri-query|contains:
- ';'
- '|'
- '&&'
- '||'
condition: cs-uri AND cs-method AND cs-uri-query
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-7066 | Command Injection | choieastsea simple-openstack-mcp up to commit 767b2f4a8154cca344344b9725537a58399e6036 |
| CVE-2026-7066 | Command Injection | Vulnerable function: exec_openstack in server.py |
| CVE-2026-7066 | Command Injection | Remote OS command injection |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 27, 2026 at 03:16 UTC |
This content was AI-rewritten and enriched by Shimi's Cyber World based on the original source. All intellectual property rights remain with the original author.
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