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OpenAdvisories
High · 7.5 CVE-2026-59655 EUVD-2026-63844GHSA-73gx-q9q8-7w92

Apache CloudStack: Unauthenticated OAuth provider client-secret disclosure

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 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.

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