Vulnerability Description
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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Grafana | Grafana | >= 11.0.0, < 12.4.1 |
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-21725?
CVE-2026-21725 is a vulnerability with a CVSS score of 2.6 (LOW). 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 ...
How severe is CVE-2026-21725?
CVE-2026-21725 has been rated LOW with a CVSS base score of 2.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-21725?
Check the references section above for vendor advisories and patch information. Affected products include: Grafana Grafana.