{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-71279 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-71279 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-71279 is a high-severity path traversal vulnerability in Koenkk zigbee2mqtt, published on 5 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-2026-71279 and fix it if it is affected.\n\nWhat it is: CVE-2026-71279 is a high-severity path traversal vulnerability in Koenkk zigbee2mqtt, published on 5 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-71279 in the wild and no public exploit code.\n\nAffected product: Koenkk zigbee2mqtt. 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-2026-71279/ (Markdown: https://insights.sbomify.com/CVE-2026-71279/index.md)","id":"CVE-2026-71279","markdown":"https://insights.sbomify.com/CVE-2026-71279/index.md","name":"CVE-2026-71279","record":{"aliases":["GHSA-77vh-g47p-vh46"],"analysis":{"component_type":"iot_embedded","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Zigbee2MQTT bridge","requires_auth":"low_privilege","summary":"Attackers can achieve remote code execution in Zigbee2MQTT by exploiting a path traversal vulnerability in the external JS extension handler.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TuranSec","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Zigbee2MQTT's ExternalJSExtension.getFilePath (lib/extension/externalJS.ts) joins a parameter received via an MQTT message (topic zigbee2mqtt/bridge/request/extension/save) into the extensions base path using path.join(basePath, name) with no sanitization. The extension handler only validates that the name ends in .js/.mjs/.cjs, writes the file, and then dynamically imports it via Node.js import, achieving remote code execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Zigbee2MQTT External JS Extension Path Traversal Leading to Remote Code Execution","id":"CVE-2026-71279","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"go-shiori Server-Side Request Forgery via Unrestricted Bookmark URL Fetch","id":"CVE-2026-71280"},"packages":[],"prev":{"headline":"rust-iot-platform Unauthenticated Remote Code Execution via Unsandboxed Calc-Rule Script Evaluation","id":"CVE-2026-71278"},"products":["zigbee2mqtt"],"published":"2026-08-05","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-10","vendors":["Koenkk"]},"summary":"Attackers can achieve remote code execution in Zigbee2MQTT by exploiting a path traversal vulnerability in the external JS extension handler.","url":"https://insights.sbomify.com/CVE-2026-71279/"}