HIGHVulnerability
CVE-2026-71279
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.
Properties
- severity
- HIGH
- score
- 8
- cve_id
- CVE-2026-71279
- vector
- CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- published_at
- 2026-08-05T13:24:52.437
- last_modified
- 2026-08-26T17:13:24.800
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
DESCRIBED_BY (1)
→[Source]NVD
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