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CVE-2026-21725

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.

Published Feb 25, 2026CWE-367EPSS 0.17%

Overview

CVE-2026-21725 is a low-severity vulnerability. It was published on February 25, 2026 and has a CVSS 3.1 base score of 2.6 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.6, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgrafana.com/security/security-advisories/cve-2026-21725

How CyberStrike helps

Frequently asked questions

What is CVE-2026-21725?

CVE-2026-21725 is a low-severity vulnerability. It was published on February 25, 2026 and has a CVSS 3.1 base score of 2.6 (LOW).

How severe is CVE-2026-21725?

This vulnerability has a CVSS 3.1 base score of 2.6, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-21725?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-21725?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-21725 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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