CVE-2026-21725

CVSS v3 2.6 LOW

2.6^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

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. This requires several very stringent conditions to be met: - The attacker must have admin access to the specific datasource prior to its first deletion. - Upon deletion, all steps within the attack must happen within the next 30 seconds and on the same pod of Grafana. - The attacker must delete the datasource, then someone must recreate it. - The new datasource must not have the attacker as an admin. - The new datasource must have the same UID as the prior datasource. These are randomised by default. - The datasource can now be re-deleted by the attacker. - Once 30 seconds are up, the attack is spent and cannot be repeated. - No datasource with any other UID can be attacked.

References

Link	Resource
https://grafana.com/security/security-advisories/cve-2026-21725	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:grafana:grafana:*:-:*:*:enterprise:*:*:*

History

27 Feb 2026, 03:34

Type	Values Removed	Values Added
First Time		Grafana Grafana grafana
CPE		cpe:2.3:a:grafana:grafana::-:::enterprise:::
CWE		CWE-367
References	~~() https://grafana.com/security/security-advisories/cve-2026-21725 -~~	() https://grafana.com/security/security-advisories/cve-2026-21725 - Vendor Advisory

25 Feb 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-25 13:16

Updated : 2026-02-27 03:34

NVD link : CVE-2026-21725

Mitre link : CVE-2026-21725

CVE.ORG link : CVE-2026-21725

JSON object : View

Products Affected

grafana

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

{"id": "CVE-2026-21725", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.6, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.2}, {"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.0, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 0.5}]}, "published": "2026-02-25T13:16:05.240", "references": [{"url": "https://grafana.com/security/security-advisories/cve-2026-21725", "tags": ["Vendor Advisory"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-367"}]}], "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."}], "lastModified": "2026-02-27T03:34:26.473", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:grafana:grafana:*:-:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "0B8EFF4D-5611-41A6-B555-4A7911C72824", "versionEndExcluding": "12.4.1", "versionStartIncluding": "11.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}