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.

Score

CVSS 3.1 7.5 High

Status

Analyzed - security@apache.org

Published

2026-08-21

Last modified

2026-10-16

Weaknesses

CWE-200

Affected products

• Cloudstack (Apache)
• Apache Cloudstack (Apache Software Foundation)

References

• https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc