{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-21725", "assignerOrgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da", "state": "PUBLISHED", "assignerShortName": "GRAFANA", "dateReserved": "2026-01-05T09:26:06.214Z", "datePublished": "2026-02-25T12:35:43.104Z", "dateUpdated": "2026-02-25T12:35:43.104Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da", "shortName": "GRAFANA", "dateUpdated": "2026-02-25T12:35:43.104Z"}, "datePublic": "2026-02-25T08:21:23.844Z", "title": "Authorization Bypass via TOCTOU in Grafana Datasource Deletion by Name", "descriptions": [{"lang": "en", "value": "A time-of-create-to-time-of-use (TOCTOU) vulnerability lets recently deleted-then-recreated data sources be re-deleted without permission to do so.\n\nThis requires several very stringent conditions to be met:\n\n- The attacker must have admin access to the specific datasource prior to its first deletion.\n- Upon deletion, all steps within the attack must happen within the next 30 seconds and on the same pod of Grafana.\n- The attacker must delete the datasource, then someone must recreate it.\n- The new datasource must not have the attacker as an admin.\n- The new datasource must have the same UID as the prior datasource. These are randomised by default.\n- The datasource can now be re-deleted by the attacker.\n- Once 30 seconds are up, the attack is spent and cannot be repeated.\n- No datasource with any other UID can be attacked."}], "affected": [{"vendor": "Grafana", "product": "Grafana", "platforms": ["OnPrem"], "defaultStatus": "unaffected", "versions": [{"version": "v11.0.0", "status": "affected", "versionType": "semver", "lessThan": "v12.4.1"}]}], "references": [{"url": "https://grafana.com/security/security-advisories/cve-2026-21725", "tags": ["vendor-advisory"]}], "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 2.6, "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L"}}], "source": {"discovery": "BUG_BOUNTY"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A time-of-create-to-time-of-use (TOCTOU) vulnerability lets recently deleted-then-recreated data sources be re-deleted without permission to do so.\n\nThis requires several very stringent conditions to be met:\n\n- The attacker must have admin access to the specific datasource prior to its first deletion.\n- Upon deletion, all steps within the attack must happen within the next 30 seconds and on the same pod of Grafana.\n- The attacker must delete the datasource, then someone must recreate it.\n- The new datasource must not have the attacker as an admin.\n- The new datasource must have the same UID as the prior datasource. These are randomised by default.\n- The datasource can now be re-deleted by the attacker.\n- Once 30 seconds are up, the attack is spent and cannot be repeated.\n- No datasource with any other UID can be attacked."}], "id": "CVE-2026-21725", "lastModified": "2026-02-25T14:15:29.980", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 2.6, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 1.4, "source": "security@grafana.com", "type": "Secondary"}]}, "published": "2026-02-25T13:16:05.240", "references": [{"source": "security@grafana.com", "url": "https://grafana.com/security/security-advisories/cve-2026-21725"}], "sourceIdentifier": "security@grafana.com", "vulnStatus": "Awaiting Analysis"}

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