{ "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": "2026-07-10T18:44:43.325Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da", "shortName": "GRAFANA", "dateUpdated": "2026-07-10T18:44:43.325Z" }, "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", "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": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-367", "lang": "en", "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition" } ] } ], "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": "2026-05-10T13:25:12.332Z" } } ] } }