What is CVE-2026-71279?

CVE-2026-71279 is a high-severity vulnerability in Koenkk Zigbee2mqtt, classified under Path Traversal. CVSS score: 8.0/10. Published 2026-08-05.

How severe is CVE-2026-71279?

High severity. CVSS v3 base score is 8.0 out of 10.

Path Traversal in Koenkk Zigbee2mqtt

CVE-2026-71279

Zigbee2MQTT's ExternalJSExtension.getFilePath() (lib/extension/externalJS.ts) joins a `name` parameter received via an MQTT message (topic zigbee2mqtt/bridge/request/extension/save) into the extensions base path using path.join(basePath, n…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Koenkk Zigbee2mqtt — versions 0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c

Frequently asked questions

What is CVE-2026-71279?: CVE-2026-71279 is a high-severity vulnerability in Koenkk Zigbee2mqtt, classified under Path Traversal. CVSS score: 8.0/10. Published 2026-08-05.
How severe is CVE-2026-71279?: High severity. CVSS v3 base score is 8.0 out of 10.