{"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": "2026-02-25T15:13:57.618Z"}, "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"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-25T15:13:32.666615Z", "id": "CVE-2026-21725", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-25T15:13:57.618Z"}}]}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:grafana:grafana:*:-:*:*:enterprise:*:*:*", "matchCriteriaId": "0B8EFF4D-5611-41A6-B555-4A7911C72824", "versionEndExcluding": "12.4.1", "versionStartIncluding": "11.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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": "2026-02-27T03:34:26.473", "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"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 2.0, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 0.5, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-02-25T13:16:05.240", "references": [{"source": "security@grafana.com", "tags": ["Vendor Advisory"], "url": "https://grafana.com/security/security-advisories/cve-2026-21725"}], "sourceIdentifier": "security@grafana.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "grafana: Grafana: Unauthorized data source deletion via time-of-create-to-time-of-use (TOCTOU) vulnerability", "id": "2442609", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442609"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-367", "details": ["A flaw was found in Grafana. This vulnerability, known as a time-of-create-to-time-of-use (TOCTOU) issue, allows an attacker to delete a data source without proper authorization. For this to occur, the attacker must have previously managed the data source, and it must be recreated with the same unique identifier (UID) within a 30-second window on the same Grafana server. The consequence is the unauthorized deletion of a data source, which can lead to a denial of service for that specific resource."], "name": "CVE-2026-21725", "package_state": [{"cpe": "cpe:/a:redhat:ceph_storage:7", "fix_state": "Fix deferred", "package_name": "rhceph/grafana-rhel9", "product_name": "Red Hat Ceph Storage 7"}, {"cpe": "cpe:/a:redhat:ceph_storage:8", "fix_state": "Fix deferred", "package_name": "rhceph/grafana-rhel9", "product_name": "Red Hat Ceph Storage 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "grafana", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "grafana", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "grafana", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-02-25T12:35:43Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-21725\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-21725\nhttps://grafana.com/security/security-advisories/cve-2026-21725"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": ["onprem"], "status": "affected", "versions": {"scheme": "semver", "value": "[11.0.0,12.4.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Grafana", "source": "cna", "vendor": "Grafana"}, "product": "grafana", "vendor": "grafana"}], "created": "2026-02-26T13:18:07.748940+00:00", "updated": "2026-02-26T13:18:07.749030+00:00", "vendors": ["grafana", "grafana$PRODUCT$grafana"]}