Vulnerability Details CVE-2026-59655
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's OAuth authentication plugin while listing OAuth providers.
This issue affects Apache CloudStack: from 4.19.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.
Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 26.1%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-59655
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cpe:2.3:a:apache:cloudstack:4.19.0.0
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cpe:2.3:a:apache:cloudstack:4.19.0.1
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cpe:2.3:a:apache:cloudstack:4.19.0.2
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cpe:2.3:a:apache:cloudstack:4.19.1.0
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cpe:2.3:a:apache:cloudstack:4.19.1.1
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cpe:2.3:a:apache:cloudstack:4.19.1.2
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cpe:2.3:a:apache:cloudstack:4.19.1.3
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cpe:2.3:a:apache:cloudstack:4.19.2.0
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cpe:2.3:a:apache:cloudstack:4.19.3.0
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cpe:2.3:a:apache:cloudstack:4.20.0.0
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cpe:2.3:a:apache:cloudstack:4.20.1.0
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cpe:2.3:a:apache:cloudstack:4.20.2.0
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cpe:2.3:a:apache:cloudstack:4.20.3.0
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cpe:2.3:a:apache:cloudstack:4.21.0.0
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cpe:2.3:a:apache:cloudstack:4.22.0.0
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cpe:2.3:a:apache:cloudstack:4.22.0.1
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cpe:2.3:a:apache:cloudstack:4.22.1.0