{"answers":{"affected":"4 open source packages ship an affected version, including sublinear-time-solver and consciousness-explorer.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55609 exists.","fix":"Upgrade sublinear-time-solver to 1.6.0 or later.","what":"CVE-2026-55609 is a high-severity path traversal vulnerability in ruvnet sublinear-time-solver, published on 25 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-55609 and fix it if it is affected.\n\nWhat it is: CVE-2026-55609 is a high-severity path traversal vulnerability in ruvnet sublinear-time-solver, published on 25 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55609 exists.\n\nAffected packages and fixed versions:\n- sublinear-time-solver (npm): affected all versions; fixed in 1.6.0\n- sublinear-time-solver (npm): affected all versions; fixed in 1.6.0\n- consciousness-explorer (npm): affected all versions; fixed in 1.1.2\n- consciousness-explorer (npm): affected all versions; fixed in 1.1.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-55609/ (Markdown: https://insights.sbomify.com/CVE-2026-55609/index.md)","id":"CVE-2026-55609","markdown":"https://insights.sbomify.com/CVE-2026-55609/index.md","name":"CVE-2026-55609","record":{"aliases":["GHSA-xc9g-j69q-37xw"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Rust WebAssembly library","requires_auth":"low_privilege","summary":"An attacker can read, write, or overwrite arbitrary files via path traversal in MCP export/import tools, compromising confidentiality and integrity.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-73","name":"External Control of File Name or Path"}],"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.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"sublinear-time-solver: Arbitrary file write in consciousness-explorer / sublinear-time-solver MCP export_state","id":"CVE-2026-55609","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":4,"n_references":7,"next":{"headline":"InvoiceShelf has cross-company user read/update IDOR that enables cross-tenant account takeover","id":"CVE-2026-55610"},"packages":[{"ecosystem":"npm","fixed":["1.1.2"],"introduced":["0"],"last_affected":[],"package":"consciousness-explorer","purl":null,"source":"GHSA-xc9g-j69q-37xw"},{"ecosystem":"npm","fixed":["1.1.2"],"introduced":["0"],"last_affected":[],"package":"consciousness-explorer","purl":"pkg:npm/consciousness-explorer","source":"GHSA-xc9g-j69q-37xw"},{"ecosystem":"npm","fixed":["1.6.0"],"introduced":["0"],"last_affected":[],"package":"sublinear-time-solver","purl":null,"source":"GHSA-xc9g-j69q-37xw"},{"ecosystem":"npm","fixed":["1.6.0"],"introduced":["0"],"last_affected":[],"package":"sublinear-time-solver","purl":"pkg:npm/sublinear-time-solver","source":"GHSA-xc9g-j69q-37xw"}],"prev":{"headline":"n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode","id":"CVE-2026-55608"},"products":["sublinear-time-solver"],"published":"2026-08-25","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-26","vendors":["ruvnet"]},"summary":"An attacker can read, write, or overwrite arbitrary files via path traversal in MCP export/import tools, compromising confidentiality and integrity.","url":"https://insights.sbomify.com/CVE-2026-55609/"}