CVE-2026-33268: Nanoleaf Lines unauthenticated firmware file store

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-25 · updated 2026-06-17
Weakness: CWE-400

Description

Nanoleaf Lines 12.3.2 does not authenticate firmware file uploads. A remote, unauthenticated attacker can upload firmware files on the device and consume storage resources. Fixed in 12.3.6.

Affected products

Nanoleaf Lines: from 12.3.2 before 12.3.6 — fixed in 12.3.6

How to fix

Upgrade to a fixed version: Nanoleaf Lines 12.3.6. Check the vendor advisory for mitigations.

References

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-084-01.json
https://support.nanoleaf.me/hc/en-us/articles/45269445987092-Products-Firmware-Release-Notes-2026
https://www.cve.org/CVERecord?id=CVE-2026-33268

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