{"cve":"CVE-2026-55609","nvd":{"published":"2026-08-25T19:16:50.160","modified":"2026-09-09T21:07:31.353","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","score":7.1},"cwes":["CWE-73"],"references":["https://github.com/BruceJqs/public_exp/issues/32","https://github.com/ruvnet/sublinear-time-solver/commit/a701296e363192be863e79d788fa268095e3d229","https://github.com/ruvnet/sublinear-time-solver/commit/ea9a212b69e4449ec443fe088a7aec7546f70b4a","https://github.com/ruvnet/sublinear-time-solver/issues/19","https://github.com/ruvnet/sublinear-time-solver/pull/20"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-55609","score":0.00171,"percentile":0.06515,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-xc9g-j69q-37xw","url":"https://osv.dev/vulnerability/GHSA-xc9g-j69q-37xw","summary":"consciousness-explorer / sublinear-time-solver MCP export_state has an arbitrary file write","modified":"2026-08-26T00:55:48.151532960Z","packages":[{"ecosystem":"npm","name":"consciousness-explorer","purl":"pkg:npm/consciousness-explorer","ranges":["<1.1.2"],"fixed":["1.1.2"]},{"ecosystem":"npm","name":"sublinear-time-solver","purl":"pkg:npm/sublinear-time-solver","ranges":["<1.6.0"],"fixed":["1.6.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}