CVE-2026-5208 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in coolercontrold

What is CVE-2026-5208?

CVE-2026-5208 is a high-severity command injection 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

Command injection in alerts in CoolerControl/coolercontrold <4.0.0 allows authenticated attackers to execute arbitrary code as root via injected bash commands in alert names

Weakness: CWE-78

Which versions are affected by CVE-2026-5208?

It affects 1 product.

Products include Coolercontrol Coolercontrold.

How do I fix CVE-2026-5208?

No fix has been published for CVE-2026-5208 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-5208 being exploited?

There is no known exploitation of CVE-2026-5208 in the wild and no public exploit code.

Other vulnerabilities in coolercontrold

• CVE-2026-5301 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in coolercontrol-ui High 7.6
• CVE-2026-5302 Permissive Cross-domain Policy with Untrusted Domains in coolercontrold Medium 6.3
• CVE-2026-5300 Missing Authentication for Critical Function in coolercontrold Medium 5.9

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-745q-62mf-gxpx.