ruvnet sublinear-time-solver up to 1.5.x Export State Tool server.js export_state filepath path traversal

Summaryinfo

A vulnerability was found in ruvnet sublinear-time-solver up to 1.5.x. It has been rated as problematic. Impacted is the function export_state of the file src/consciousness-explorer/mcp/server.js of the component Export State Tool. The manipulation of the argument filepath leads to path traversal. This vulnerability is listed as CVE-2026-55609. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in ruvnet sublinear-time-solver up to 1.5.x and classified as problematic. This issue affects the function export_state of the file src/consciousness-explorer/mcp/server.js of the component Export State Tool. The manipulation of the argument filepath with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

sublinear-time-solver is a Rust and WebAssembly library for solving asymmetric diagonally dominant systems in sublinear time. Prior to consciousness-explorer 1.1.2 and sublinear-time-solver 1.6.0, the export_state and import_state tools in src/consciousness-explorer/mcp/server.js pass the attacker-controlled filepath parameter to filesystem operations in src/consciousness-explorer/index.js without restricting the destination or rejecting traversal. The saveVectorToFile and loadVectorFromFile tools in src/mcp/server.ts contain the same sink class through the file_path parameter. An attacker able to invoke the MCP tools can read, write, or overwrite any file accessible to the server process, causing confidentiality and integrity loss and possible service disruption. This issue is fixed in consciousness-explorer 1.1.2 and sublinear-time-solver 1.6.0.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-55609 since 06/17/2026. The exploitation is known to be easy. An attack has to be approached locally. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 1.6.0 eliminates this vulnerability.

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Productinfo

Vendor

• ruvnet

Name

• sublinear-time-solver

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5

Website

• Product: https://github.com/ruvnet/sublinear-time-solver/

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