CVE-2026-21727

LOW EPSS 10.5%
Published Apr 15, 20262mo ago · Modified Jun 17, 20261w ago
3.3 CVSS 3.1
Low
Find Similar
Published Apr 15, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

--- 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 cvss_score: "3.3" cvss_vector: "CVSS:3.3/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N" fixed_versions: - ">=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 org_id = 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.

CVSS Details

Base Score
3.3
Exploitability
0.7
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
10.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-732

Affected Products 5

VendorProductVersionRange
grafanagrafana* <11.6.11
grafanagrafana*≥12.0.0  –  <12.0.9
grafanagrafana*≥12.1.0  –  <12.1.6
grafanagrafana*≥12.2.0  –  <12.2.4
grafanagrafana*≥12.3.0  –  <12.3.3

References 1

  • grafana.com https://grafana.com/security/security-advisories/cve-2026-21727
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.