CVE-2026-7590: OS Command Injection in eyal-gor p_69_branch_monkey_mcp
The National Vulnerability Database has disclosed CVE-2026-7590, a high-severity OS command injection vulnerability (CVSS 7.3) affecting eyal-gor’s p_69_branch_monkey_mcp project, specifically up to commit 69bc71874ce40050ef45fde5a435855f18af3373. This critical flaw resides within an unknown function in the branch_monkey_mcp/bridge_and_local_actions/routes/advanced.py file, tied to the Preview Endpoint component. Attackers can exploit this remotely by manipulating the dev_script argument.
What makes this particularly dangerous is the public availability of an exploit, as noted by the National Vulnerability Database. The project lacks versioning, making it impossible to identify specific affected or unaffected releases. Furthermore, the project maintainers were informed via an issue report but have not yet responded, leaving users exposed to a known, exploitable vulnerability.
This isn’t just theoretical. Remote OS command injection is a red teamer’s dream. It often leads directly to shell access, allowing for complete system compromise, data exfiltration, or further lateral movement within a network. The lack of response from the maintainers means any organization using this component is operating on borrowed time.
What This Means For You
- If your organization utilizes `eyal-gor p_69_branch_monkey_mcp` in any capacity, immediately audit your deployments. Given the public exploit and remote attack vector, assume compromise is imminent if you're running vulnerable versions. Until a patch is available, consider isolating or disabling any systems running this component. Prioritize identifying if this dependency exists within your environment and assess the potential blast radius.
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-2026-7590: OS Command Injection in eyal-gor p_69_branch_monkey_mcp Preview Endpoint
title: CVE-2026-7590: OS Command Injection in eyal-gor p_69_branch_monkey_mcp Preview Endpoint
id: scw-2026-05-01-ai-1
status: experimental
level: critical
description: |
This rule detects attempts to exploit CVE-2026-7590 by identifying requests to the 'advanced.py' endpoint with a 'dev_script' parameter containing common command injection characters like backticks, semicolons, pipes, or logical operators. This is the primary indicator of a remote OS command injection attempt via the Preview Endpoint.
author: SCW Feed Engine (AI-generated)
date: 2026-05-01
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-7590/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/advanced.py'
cs-uri-query|contains:
- 'dev_script='
cs-uri-query|contains:
- '`'
cs-uri-query|contains:
- ';'
cs-uri-query|contains:
- '|'
cs-uri-query|contains:
- '&&'
cs-uri-query|contains:
- '||'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-7590 | Command Injection | eyal-gor p_69_branch_monkey_mcp up to 69bc71874ce40050ef45fde5a435855f18af3373 |
| CVE-2026-7590 | Command Injection | branch_monkey_mcp/bridge_and_local_actions/routes/advanced.py |
| CVE-2026-7590 | Command Injection | Preview Endpoint component |
| CVE-2026-7590 | Command Injection | Manipulation of argument dev_script |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 01, 2026 at 22:16 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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