Low
Grafana Correlations: Cross-Tenant Data Disclosure and Permanent Deletion via Legacy org_id=0 Record
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-21727
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 17:11 UTC · Revision 1
Source evidence
Grafana Correlations: Cross-Tenant Data Disclosure and Permanent Deletion via Legacy org_id=0 Record
core-osv · Original sourcePublished 15 Apr 2026, 18:57 UTC
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.
osv:CVE-2026-21727
Complete source record
{
"id": "38eb08d158cf19b2a9ba59ccb29c962d5f27a0a4eb0e587e31a1d56bfee947fc",
"url": "https://osv.dev/vulnerability/CVE-2026-21727",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Grafana Correlations: Cross-Tenant Data Disclosure and Permanent Deletion via Legacy org_id=0 Record",
"summary": "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.",
"evidence": "osv:CVE-2026-21727",
"products": [],
"severity": "low",
"structured": {
"id": "CVE-2026-21727",
"aliases": [
"BIT-grafana-2026-21727",
"CVE-2026-21727",
"GHSA-p5x9-j974-rpfp",
"GO-2026-6664"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/grafana/grafana",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "72c5569cabbe9125f7d254ec021e7559b765a596"
},
{
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{
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{
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{
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{
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{
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{
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{
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}
],
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{
"cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
"range": [
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{
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"source": "CPE_RANGE"
},
{
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"range": [
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{
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],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
"range": [
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},
{
"fixed": "12.1.6"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
"range": [
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{
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"source": "CPE_RANGE"
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{
"cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
"range": [
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},
{
"fixed": "12.3.3"
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],
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}
]
}
}
],
"versions": [
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"v12.1.4",
"v12.0.6+security-01",
"v12.0.6",
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"v11.6.7",
"v12.1.2",
"v12.0.5",
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"v12.1.1",
"v12.0.4",
"v11.6.5",
"v12.0.3",
"v11.6.4",
"v12.1.0",
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"v11.6.0",
"pkg/promlib/v0.0.8",
"pkg/promlib/v0.0.7",
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"pkg/promlib/v0.0.5",
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"pkg/promlib/v0.0.3",
"pkg/promlib/v0.0.2",
"pkg/promlib/v0.0.1",
"pkg/util/xorm/v0.0.1",
"v0.0.1-test",
"v10.0.0-preview",
"v0.0.0-cloud",
"v3.2.1-test",
"v8.5.16",
"v9.3.0-beta1",
"v8.4.0-beta1",
"v8.3.3",
"v6.5",
"v6.0.0-beta1",
"v5.,2.4",
"v5.0.0",
"v5.0.0-beta5",
"v5.0.0-beta4",
"v5.0.0-beta3",
"v5.0.0-beta2",
"v5.0.0-beta1",
"v4.6.0-beta1",
"v4.5.0",
"v4.5.0-beta1",
"v4.4.0",
"v3.1.0-beta1",
"v3.0.2",
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"v3.0.0-beta7",
"v3.0.0-beta6",
"v2.6.0",
"v2.6.0-beta1",
"v2.5.0",
"v2.0.2",
"v2.0.1",
"v2.0.0-beta3",
"v2.0.0-beta1",
"v1.9.1",
"v1.9.0",
"v1.9.0-rc1",
"v1.7.0-rc1",
"v1.6.1",
"v1.6.0",
"v1.5.4",
"v1.5.3",
"v1.5.2",
"v1.5.1",
"v1.5.0",
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"v1.1.0",
"v1.0.4",
"v1.0.3",
"v1.0.2",
"v1.0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21727.json"
}
}
],
"modified": "2026-10-28T02:30:30.540390427Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21727.json",
"https://grafana.com/security/security-advisories/cve-2026-21727",
"https://nvd.nist.gov/vuln/detail/CVE-2026-21727"
],
"provider_metadata": {
"cna_assigner": "GRAFANA",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "10.2.0"
},
{
"fixed": "12.4.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21727.json"
}
},
"related_cves": [
{
"value": "CVE-2026-21727",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 497730,
"published_at": "2026-04-15T18:57:25.185+00:00"
}