UBUNTU-CVE-2026-21727

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Source
https://ubuntu.com/security/CVE-2026-21727
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-21727.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-21727
Upstream
  • CVE-2026-21727
Published
2026-04-15T20:16:00Z
Modified
2026-05-14T14:26:54.671250Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

--- title: Cross-Tenant Legacy Correlation Disclosure and Deletion draft: false hero: image: /static/img/heros/hero-legal2.svg content: "# Cross-Tenant Legacy Correlation Disclosure and Deletion" date: 2026-01-29 product: Grafana severity: Low cve: CVE-2026-21727 cvssscore: "3.3" cvssvector: "CVSS:3.3/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N" fixedversions: - ">=11.6.11 >=12.0.9 >=12.1.6 >=12.2.4" --- A cross-tenant isolation vulnerability was found in Grafana’s Correlations feature affecting legacy correlation records. Due to a backward compatibility condition allowing orgid = 0 records to be returned across organizations, a user with datasource management privileges could read and permanently delete legacy correlation data belonging to another organization. This issue affects correlations created prior to Grafana 10.2 and is fixed in >=11.6.11, >=12.0.9, >=12.1.6, and >=12.2.4. Thanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability.

References

Affected packages

Ubuntu:16.04:LTS / grafana

Package

Name
grafana
Purl
pkg:deb/ubuntu/grafana@2.6.0+dfsg-1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.6.0+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "grafana",
            "binary_version": "2.6.0+dfsg-1"
        },
        {
            "binary_name": "grafana-data",
            "binary_version": "2.6.0+dfsg-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-21727.json"