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CVE-2026-5300

Missing Authentication for Critical Function in coolercontrold

5.9 Medium

Unauthenticated functionality in CoolerControl/coolercontrold <4.0.0 allows unauthenticated attackers to view and modify potentially sensitive data via HTTP requests

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
Low

Exploit likelihood

0.22%Up 0.2 points since Apr 9, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.9

Missing Authentication for Critical Function in coolercontrold

Unauthenticated functionality in CoolerControl/coolercontrold <4.0.0 allows unauthenticated attackers to view and modify potentially sensitive data via HTTP requests

Record
CVE-2026-5300
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-306
Updated
2026-11-02
EUVDEUVD-2026-20457 5.9

Unauthenticated functionality in CoolerControl/coolercontrold <4.0.0 allows unauthenticated attackers to view and modify potentially sensitive data via HTTP requests

Record
EUVD-2026-20457
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-8gfg-vxcc-9fj7 5.9

Unauthenticated functionality in CoolerControl/coolercontrold <4.0.0 allows unauthenticated...

Unauthenticated functionality in CoolerControl/coolercontrold <4.0.0 allows unauthenticated attackers to view and modify potentially sensitive data via HTTP requests

Record
GHSA-8gfg-vxcc-9fj7
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-306
Updated
2026-11-02
NVD 5.9

Unauthenticated functionality in CoolerControl/coolercontrold <4.0.0 allows unauthenticated attackers to view and modify potentially sensitive data via HTTP requests

Record
CVE-2026-5300
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-306
Updated
2026-11-02
OSV 5.9

Missing Authentication for Critical Function in coolercontrold

Unauthenticated functionality in CoolerControl/coolercontrold <4.0.0 allows unauthenticated attackers to view and modify potentially sensitive data via HTTP requests

Record
CVE-2026-5300
CVSS 3.1
5.9 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-306
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-5300 is a medium vulnerability (CVSS 5.9) in Coolercontrol Coolercontrold, published April 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. No source names a fixed version.

References

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