CVE-2026-5302 Permissive Cross-domain Policy with Untrusted Domains in coolercontrold
Attackers can read data and send commands to CoolerControl via malicious websites due to permissive CORS settings.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-5302?
CVE-2026-5302 is a medium-severity vulnerability in coolercontrold, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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
Weakness: CWE-942
Which versions are affected by CVE-2026-5302?
It affects 1 product.
Products include Coolercontrol Coolercontrold.
How do I fix CVE-2026-5302?
No fix has been published for CVE-2026-5302 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-5302 being exploited?
There is no known exploitation of CVE-2026-5302 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-2026-5300 Missing Authentication for Critical Function in coolercontrold
Sources
Also known as GHSA-vhqm-xjcf-g4x8.