CVE-2026-66797

Source
https://cve.org/CVERecord?id=CVE-2026-66797
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66797.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-66797
Published
2026-08-21T08:21:58.452Z
Modified
2026-08-29T03:46:42.382285157Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
Apache CloudStack: Unauthorised comment creation and disclosure
Details

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.

Database specific
{
    "cwe_ids": [
        "CWE-284"
    ],
    "cna_assigner": "apache",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "4.16.0.0"
                },
                {
                    "last_affected": "4.20.3.0"
                },
                {
                    "introduced": "4.21.0.0"
                },
                {
                    "last_affected": "4.22.1.0"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "4.15.0.0"
                },
                {
                    "fixed": "4.20.3.0"
                },
                {
                    "introduced": "4.21.0.0"
                },
                {
                    "fixed": "4.22.1.0"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66797.json"
}
References

Affected packages

Git / github.com/apache/cloudstack

Affected ranges

Type
GIT
Repo
https://github.com/apache/cloudstack
Events
Database specific
Show details
{
    "source": "DESCRIPTION",
    "extracted_events": [
        {
            "introduced": "4.15.0.0"
        },
        {
            "fixed": "4.20.3.0"
        },
        {
            "introduced": "4.21.0.0"
        },
        {
            "fixed": "4.22.1.0"
        }
    ]
}

Affected versions

4.*
4.21.0.0
4.22.0.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66797.json"