CVE-2026-5300 Missing Authentication for Critical Function in coolercontrold
Unauthenticated attackers can view and modify sensitive data in coolercontrold via HTTP requests due to missing authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5300?
CVE-2026-5300 is a medium-severity missing authorization vulnerability in coolercontrold, published on 8 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Unauthenticated functionality in CoolerControl/coolercontrold <4.0.0 allows unauthenticated attackers to view and modify potentially sensitive data via HTTP requests
Weakness: CWE-306
Which versions are affected by CVE-2026-5300?
It affects 1 product.
Products include Coolercontrol Coolercontrold.
How do I fix CVE-2026-5300?
No fix has been published for CVE-2026-5300 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-5300 being exploited?
There is no known exploitation of CVE-2026-5300 in the wild and no public exploit code.
Other vulnerabilities in coolercontrold
- CVE-2026-5208 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in coolercontrold
- CVE-2026-5301 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in coolercontrol-ui
- CVE-2026-5302 Permissive Cross-domain Policy with Untrusted Domains in coolercontrold
Sources
Also known as GHSA-8gfg-vxcc-9fj7.