CVE-2026-21721

The dashboard permissions API does not verify the target dashboard scope and only checks the dashboards.permissions:* action. As a result, a user who has permission management rights on one dashboard can read and modify permissions on other dashboards. This is an organization‑internal privilege escalation.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://grafana.com/security/security-advisories/cve-2026-21721	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:2914
https://access.redhat.com/errata/RHSA-2026:2920
https://access.redhat.com/errata/RHSA-2026:3078
https://access.redhat.com/errata/RHSA-2026:3529
https://access.redhat.com/errata/RHSA-2026:41064
https://access.redhat.com/errata/RHSA-2026:5633
https://access.redhat.com/errata/RHSA-2026:8229
https://access.redhat.com/security/cve/CVE-2026-21721
https://bugzilla.redhat.com/show_bug.cgi?id=2433242
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-21721.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:grafana:grafana::::::::
	cpe:2.3:a:grafana:grafana::::::::
	cpe:2.3:a:grafana:grafana::::::::
	cpe:2.3:a:grafana:grafana::::::::
	cpe:2.3:a:grafana:grafana:11.6.9:-::::::
	cpe:2.3:a:grafana:grafana:12.0.8:-::::::
	cpe:2.3:a:grafana:grafana:12.1.5:-::::::
	cpe:2.3:a:grafana:grafana:12.2.3:-::::::
	cpe:2.3:a:grafana:grafana:12.3.0:::::::*
	cpe:2.3:a:grafana:grafana:12.3.1:-::::::

History

No history.

Information

Published : 2026-01-27 09:15

Updated : 2026-07-20 12:18

NVD link : CVE-2026-21721

Mitre link : CVE-2026-21721

CVE.ORG link : CVE-2026-21721

JSON object : View

Products Affected

grafana

grafana

CWE

CWE-863

Incorrect Authorization

CWE-639

Authorization Bypass Through User-Controlled Key

{"id": "CVE-2026-21721", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21721", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-01-28T04:55:19.556498Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@grafana.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@grafana.com", "affectedData": [{"vendor": "Grafana", "product": "grafana/grafana", "versions": [{"status": "affected", "version": "12.3.0", "lessThan": "12.3.1", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Grafana", "product": "grafana/grafana", "versions": [{"status": "affected", "version": "12.2.0", "lessThan": "12.2.3", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Grafana", "product": "grafana/grafana", "versions": [{"status": "affected", "version": "12.1.0", "lessThan": "12.1.5", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Grafana", "product": "grafana/grafana", "versions": [{"status": "affected", "version": "12.0.0", "lessThan": "12.0.8", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Grafana", "product": "grafana/grafana", "versions": [{"status": "affected", "version": "10.2.0", "lessThan": "11.6.9", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Grafana", "product": "grafana/grafana-enterprise", "versions": [{"status": "affected", "version": "10.2.0", "lessThan": "11.6.9", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Grafana", "product": "grafana/grafana-enterprise", "versions": [{"status": "affected", "version": "12.0.0", "lessThan": "12.0.8", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Grafana", "product": "grafana/grafana-enterprise", "versions": [{"status": "affected", "version": "12.1.0", "lessThan": "12.1.5", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Grafana", "product": "grafana/grafana-enterprise", "versions": [{"status": "affected", "version": "12.2.0", "lessThan": "12.2.3", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Grafana", "product": "grafana/grafana-enterprise", "versions": [{"status": "affected", "version": "12.3.0", "lessThan": "12.3.1", "versionType": "semver"}], "defaultStatus": "unaffected"}]}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "affectedData": [{"cpes": ["cpe:/o:redhat:enterprise_linux:10.1"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "0:10.2.6-22.el10_1", "lessThan": "*", "versionType": "rpm"}], "packageName": "grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:10.2.6-20.el10_0", "lessThan": "*", "versionType": "rpm"}], "packageName": "grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:10.2.6-18.el9_7", "lessThan": "*", "versionType": "rpm"}], "packageName": "grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:10.2.6-17.el9_6", "lessThan": "*", "versionType": "rpm"}], "packageName": "grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:acm:2.11::el9"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.11", "versions": [{"status": "unaffected", "version": "1783578847", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-grafana-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:acm:2.12::el9"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.12", "versions": [{"status": "unaffected", "version": "1774002166", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-grafana-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:acm:2.13::el9"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.13", "versions": [{"status": "unaffected", "version": "1774950654", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhacm2/acm-grafana-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:multicluster_globalhub"], "vendor": "Red Hat", "product": "Multicluster Global Hub", "packageName": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ceph_storage:5"], "vendor": "Red Hat", "product": "Red Hat Ceph Storage 5", "packageName": "rhceph/grafana-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ceph_storage:5"], "vendor": "Red Hat", "product": "Red Hat Ceph Storage 5", "packageName": "rhel8/grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ceph_storage:5"], "vendor": "Red Hat", "product": "Red Hat Ceph Storage 5", "packageName": "rhel9/grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ceph_storage:6"], "vendor": "Red Hat", "product": "Red Hat Ceph Storage 6", "packageName": "rhceph/grafana-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ceph_storage:6"], "vendor": "Red Hat", "product": "Red Hat Ceph Storage 6", "packageName": "rhel8/grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ceph_storage:6"], "vendor": "Red Hat", "product": "Red Hat Ceph Storage 6", "packageName": "rhel9/grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ceph_storage:8"], "vendor": "Red Hat", "product": "Red Hat Ceph Storage 8", "packageName": "rhceph/grafana-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ceph_storage:8"], "vendor": "Red Hat", "product": "Red Hat Ceph Storage 8", "packageName": "rhel8/grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ceph_storage:8"], "vendor": "Red Hat", "product": "Red Hat Ceph Storage 8", "packageName": "rhel9/grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "grafana", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}]}], "published": "2026-01-27T09:15:48.640", "references": [{"url": "https://grafana.com/security/security-advisories/cve-2026-21721", "tags": ["Vendor Advisory"], "source": "security@grafana.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:2914", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:2920", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:3078", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:3529", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:41064", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:5633", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:8229", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-21721", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2433242", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-21721.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-863"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-639"}]}], "descriptions": [{"lang": "en", "value": "The dashboard permissions API does not verify the target dashboard scope and only checks the dashboards.permissions:* action. As a result, a user who has permission management rights on one dashboard can read and modify permissions on other dashboards. This is an organization\u2011internal privilege escalation."}, {"lang": "es", "value": "La API de permisos del panel no verifica el alcance del panel de destino y solo comprueba la acci\u00f3n dashboards.permissions:*. Como resultado, un usuario que tiene derechos de gesti\u00f3n de permisos en un panel puede leer y modificar permisos en otros paneles. Esto es una escalada de privilegios interna de la organizaci\u00f3n."}], "lastModified": "2026-07-20T12:18:02.570", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6F6E2185-5D9B-4519-BFE1-363489FDE5C5", "versionEndExcluding": "11.6.9", "versionStartIncluding": "10.2.0"}, {"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0800CF3F-6B22-4AC9-B7A5-88F00162D7CF", "versionEndExcluding": "12.0.8", "versionStartIncluding": "12.0.0"}, {"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B74E6E97-D985-4F8E-BFE9-DD40D99995D8", "versionEndExcluding": "12.1.5", "versionStartIncluding": "12.1.0"}, {"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FCC333B0-9BDE-4A2D-9648-C8017242DDC7", "versionEndExcluding": "12.2.3", "versionStartIncluding": "12.2.0"}, {"criteria": "cpe:2.3:a:grafana:grafana:11.6.9:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "75C49C18-902A-447E-97F3-2679BD19B517"}, {"criteria": "cpe:2.3:a:grafana:grafana:12.0.8:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "63A1D7CB-4839-4706-AB16-0D1609B62C1E"}, {"criteria": "cpe:2.3:a:grafana:grafana:12.1.5:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FCEFE43C-35EA-4163-A184-6FE2FF14B2BA"}, {"criteria": "cpe:2.3:a:grafana:grafana:12.2.3:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D5613D06-3180-477D-9272-CAF86A6D764D"}, {"criteria": "cpe:2.3:a:grafana:grafana:12.3.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D0226F9E-7B57-4F41-BC7D-234F17628970"}, {"criteria": "cpe:2.3:a:grafana:grafana:12.3.1:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B7B29640-D0AE-4B99-95F8-B1D84E3A17AA"}], "operator": "OR"}]}], "sourceIdentifier": "security@grafana.com"}