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OpenAdvisories
High · 7.5 CVE-2026-61397 EUVD-2026-63840GHSA-ppcf-cpj8-62xr

Apache CloudStack: OAuth2 Token Cross-Request Leak

Published Aug 21, 2026 · Updated Aug 25, 2026 · Assigned by apache

Description

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.

Affected products

VendorProductAffectedFixed
Apache Software Foundation Apache CloudStack 4.19.0.0 – ≤ 4.20.3.0, 4.21.0.0 – ≤ 4.22.1.0 —

Advisories 2

References