Vulnerability · Published Apr 8, 2026 · Assigned by GitLab
CVE-2026-5302Permissive Cross-domain Policy with Untrusted Domains in coolercontrold
Medium 6.3
In plain English
A medium-severity security flaw in coolercontrold from CoolerControl. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.3%top 81.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| CoolerControl | coolercontrold | 2.0.0 – before 4.0.0 |
Weakness: CWE-942 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L