Permissive Cross-domain Policy with Untrusted Domains in coolercontrold

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Summary

CVECVE-2026-5302
StatePUBLISHED
AssignerGitLab
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-08 13:16:43 UTC
Updated2026-04-16 00:40:11 UTC
DescriptionCORS misconfiguration in CoolerControl/coolercontrold <4.0.0 allows unauthenticated remote attackers to read data and send commands to the service via malicious websites

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS: 0.000330000 probability, percentile 0.097350000 (date 2026-04-21)

Problem Types: CWE-942 | CWE-942 CWE-942: Permissive Cross-domain Policy with Untrusted Domains

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
3.1[email protected]Secondary6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
3.1CNACVSS6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Coolercontrol Coolercontrold All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA CoolerControl Coolercontrold affected 2.0.0 4.0.0 semver Not specified

References

ReferenceSourceLinkTags
gitlab.com/coolercontrol/coolercontrol/-/blob/2.0.0/coolercontrold/src/a... [email protected] gitlab.com Exploit
gitlab.com/coolercontrol/coolercontrol/-/releases/4.0.0 [email protected] gitlab.com Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: https://gitlab.com/lassi-3 (en)

Additional Advisory Data

Solutions

CNA: Upgrade to version 4.0.0

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