CVE-2026-71264: Aircoookie Wled

High severity, CVSS 8.2. EPSS: 0.3% chance of exploitation in the next 30 days.

WLED's GET /json/cfg endpoint (registered in wled00/wled_server.cpp) calls serveJson with no settings-PIN check, unlike the /edit endpoint which explicitly checks correctPIN, disclosing the device's general configuration (network, hardware, LED setup) to any unauthenticated client on the network.

Affected products

• Aircoookie Wled: any version

Published 2026-08-05. Last modified 2026-08-26.