What’s Vulnerable › Vulnerabilities

CVE-2026-71264: WLED Unauthenticated Configuration Disclosure via /json/cfg and Global Settings-PIN Lock State

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-05 · updated 2026-10-24
• Weakness: CWE-862

Description

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: all versions

References

• https://github.com/Aircoookie/WLED
• https://github.com/Aircoookie/WLED/blob/main/wled00/wled_server.cpp

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