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CVE-2026-5302

Permissive Cross-domain Policy with Untrusted Domains in coolercontrold

6.3 Medium

CORS misconfiguration in CoolerControl/coolercontrold <4.0.0 allows unauthenticated remote attackers to read data and send commands to the service via malicious websites

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
Low

Exploit likelihood

0.27%Up 0.2 points since Apr 9, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.3

Permissive Cross-domain Policy with Untrusted Domains in coolercontrold

CORS misconfiguration in CoolerControl/coolercontrold <4.0.0 allows unauthenticated remote attackers to read data and send commands to the service via malicious websites

Record
CVE-2026-5302
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Weakness
CWE-942
Updated
2026-11-02
EUVDEUVD-2026-20461 6.3

CORS misconfiguration in CoolerControl/coolercontrold <4.0.0 allows unauthenticated remote attackers to read data and send commands to the service via malicious websites

Record
EUVD-2026-20461
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-vhqm-xjcf-g4x8 6.3

CORS misconfiguration in CoolerControl/coolercontrold <4.0.0 allows unauthenticated remote...

CORS misconfiguration in CoolerControl/coolercontrold <4.0.0 allows unauthenticated remote attackers to read data and send commands to the service via malicious websites

Record
GHSA-vhqm-xjcf-g4x8
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Weakness
CWE-942
Updated
2026-11-02
NVD 6.3

CORS misconfiguration in CoolerControl/coolercontrold <4.0.0 allows unauthenticated remote attackers to read data and send commands to the service via malicious websites

Record
CVE-2026-5302
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness
CWE-942
Updated
2026-11-02
OSV 6.3

Permissive Cross-domain Policy with Untrusted Domains in coolercontrold

CORS misconfiguration in CoolerControl/coolercontrold <4.0.0 allows unauthenticated remote attackers to read data and send commands to the service via malicious websites

Record
CVE-2026-5302
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Weakness
CWE-942
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-2026-5302 is a medium vulnerability (CVSS 6.3) 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 0.27%, the 18th percentile. No source names a fixed version.

References

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