Not rated
CVE-2026-66797 Improper access control in CloudStack's annotation functionality allows unauthorized comment creation and disclosure
Description
Improper access control in CloudStack's annotation functionality allows unauthorized comment creation and disclosure. The addAnnotation and listAnnotation APIs perform an ownership check when an entity's UUID is specified, but fail to honor its result correctly. This lets any authenticated user write annotations to, and disclose existing annotations/comments on, an entity they don't own by simply supplying its UUID. This issue affects Apache CloudStack: from 4.15.0.0 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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache CloudStack 4.21 | 4.21.0.0 → 4.22.1.0 | No fix stated |
| Apache CloudStack 4.16 | 4.16.0.0 → 4.20.3.0 | No fix stated |
References
- lists.apache.org lists.apache.org
Timeline
- Published
- Last modified
Other CVEs of Apache CloudStack
The 51 CVEs of Apache CloudStack →
CVE-2026-59654
Missing Release of Resource after Effective Lifetime vulnerability in Apache CloudStack's scoped global configuration…
6.8
Medium
CVE-2026-47359
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Apache…
Not rated
CVE-2026-50112
SSRF via Metalink Mirror URL Resolution: An authenticated tenant can register a template pointing to an…
Not rated
CVE-2026-50222
Missing Authorization, Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's…
Not rated