CVE-2026-19330
Received Received - Intake

Path Traversal in angrysky56 advanced-reasoning-mcp

Publication date: 2026-08-09

Last updated on: 2026-08-09

Assigner: VulDB

Description
A vulnerability was determined in angrysky56 advanced-reasoning-mcp 1.0.0. The impacted element is the function create_system_json/create_library to get_system_json/switch_memory_library of the file src/index.ts. This manipulation causes path traversal. The attack requires local access. The project was informed of the problem early through an issue report but has not responded yet.

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Meta Information

Published
2026-08-09
Last Modified
2026-08-09
Generated
2026-08-09
AI Q&A
2026-08-09
EPSS Evaluated
N/A
NVD
CVE-2026-19330
EUVD
EUVD-2026-54863

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
angrysky56 advanced-reasoning-mcp 1.0.0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

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Executive Summary

This vulnerability is a path traversal issue in angrysky56 advanced-reasoning-mcp 1.0.0. It affects functions like create_system_json and get_system_json in src/index.ts. The flaw allows attackers with local access to manipulate file paths and read or write arbitrary .json files outside intended directories.

Detection Guidance

Check for suspicious file access or modifications in the angrysky56 advanced-reasoning-mcp 1.0.0 directories, particularly in src/index.ts. Monitor for unexpected JSON file reads or writes outside memory_data/system_json or memory_data. Review logs for path traversal attempts in function calls to get_system_json or switch_memory_library.

Impact Analysis

An attacker could exploit this to read sensitive files on your system or overwrite critical files by redirecting memory persistence writes to malicious paths. This could lead to data leaks, system compromise, or disruption of the MCP server's functionality.

Compliance Impact

This vulnerability could violate compliance requirements by enabling unauthorized access to sensitive data, potentially breaching GDPR's data protection principles or HIPAA's safeguards for protected health information. Exploitation may lead to regulatory penalties or loss of certification.

Mitigation Strategies

Update to a patched version if available. If not, restrict local access to the system. Implement strict input validation for file paths in get_system_json and switch_memory_library. Ensure resolved paths stay within memory_data/system_json and memory_data directories. Monitor for unauthorized file operations.

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