{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18991 exists.","fix":"No fix has been published for CVE-2026-18991 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18991 is a medium-severity path traversal vulnerability in nanocoai NanoClaw, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-18991 and fix it if it is affected.\n\nWhat it is: CVE-2026-18991 is a medium-severity path traversal vulnerability in nanocoai NanoClaw, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18991 exists.\n\nAffected product: nanocoai NanoClaw. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-18991/ (Markdown: https://insights.sbomify.com/CVE-2026-18991/index.md)","id":"CVE-2026-18991","markdown":"https://insights.sbomify.com/CVE-2026-18991/index.md","name":"CVE-2026-18991","record":{"aliases":["GHSA-q94p-g4rh-r9rf"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"NanoClaw library","requires_auth":"none","summary":"Remote attackers can exploit a path traversal vulnerability in the send_file component to read arbitrary files from the system.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"A security vulnerability has been detected in nanocoai NanoClaw up to 2.0.64. This affects an unknown part of the file container/agent-runner/src/mcp-tools/core.ts of the component send_file. Such manipulation leads to path traversal. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"nanocoai NanoClaw send_file core.ts path traversal","id":"CVE-2026-18991","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"zhayujie CowAgent Self-Evolution Review Agent executor.py _select_tools authorization","id":"CVE-2026-18992"},"packages":[],"prev":{"headline":"letta-ai LettaBot API Status Route server.ts missing authentication","id":"CVE-2026-18990"},"products":["NanoClaw"],"published":"2026-08-06","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-06","vendors":["nanocoai"]},"summary":"Remote attackers can exploit a path traversal vulnerability in the send_file component to read arbitrary files from the system.","url":"https://insights.sbomify.com/CVE-2026-18991/"}