Apache CloudStack OAuth2 Plugin Info Leak before 4.20.3.1/4.22.1.1
CVE-2026-61397 Published on August 21, 2026
Apache CloudStack: OAuth2 Token Cross-Request Leak
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's OAuth2 authentication plugin and Google OAuth integration.
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, which fixes the issue.
Vulnerability Analysis
CVE-2026-61397 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2026-61397 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2026-61397
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Affected Versions
Apache Software Foundation Apache CloudStack:- Version 4.19.0.0, <= 4.20.3.0 is affected.
- Version 4.21.0.0, <= 4.22.1.0 is affected.