CVE-2026-5302: Coolercontrol Coolercontrold

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

CORS misconfiguration in CoolerControl/coolercontrold <4.0.0 allows unauthenticated remote attackers to read data and send commands to the service via malicious websites

Affected products

• Coolercontrol Coolercontrold: before 4.0.0 (fixed in 4.0.0)

Published 2026-04-08. Last modified 2026-07-24.