CVE-2026-19288
Received Received - Intake

Path Traversal in AstralisOne Rive MCP Server Core

Publication date: 2026-08-08

Last updated on: 2026-08-08

Assigner: VulDB

Description
A vulnerability has been found in astralisone rive-mcp-server-core up to db1d0cc4cd52589116360428b7504fd0ca748b3e. This affects an unknown part of the file packages/mcp-server/src/tools/importRiveFile.ts of the component importRiveFile Flow. Such manipulation of the argument libraryId leads to path traversal. The attack needs to be performed locally. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The project was informed of the problem early through an issue report but has not responded yet.

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Meta Information

Published
2026-08-08
Last Modified
2026-08-08
Generated
2026-08-08
AI Q&A
2026-08-08
EPSS Evaluated
N/A
NVD
CVE-2026-19288
EUVD
EUVD-2026-54789

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
astralisone rive-mcp-server-core to db1d0cc4cd52589116360428b7504fd0ca748b3e (exc)

Helpful Resources

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 the astralisone rive-mcp-server-core library. It occurs in the importRiveFile function where the libraryId parameter is manipulated to write files outside the intended directory. The code fails to validate the libraryId, allowing sequences like ../ to escape the directory and write files elsewhere, such as /tmp/. The project was informed but has not responded yet.

Detection Guidance

Check for unusual file writes outside expected directories by monitoring the manifestsPath directory for unexpected files. Review server logs for requests containing path traversal sequences like ../ in the libraryId parameter. Inspect network traffic for suspicious MCP tool invocations targeting importRiveFile with manipulated arguments.

Impact Analysis

An attacker could exploit this to overwrite sensitive files on your system by sending a crafted request with a malicious libraryId. This could lead to data corruption, unauthorized file access, or system compromise if critical files are overwritten. The attack requires local access and is limited by the low CVSS score.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized file writes outside intended directories. Path traversal may enable attackers to overwrite sensitive files, such as configuration files or logs, which could lead to data breaches or unauthorized access to protected health or personal data.

Mitigation Strategies

Update to the latest version of rive-mcp-server-core if available. Implement input validation to reject libraryId values containing path traversal sequences like ../ or /.. Restrict file write operations to only allow paths within the manifestsPath directory. Monitor for any unauthorized file modifications in system directories.

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