CVE-2026-21725

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Source
https://cve.org/CVERecord?id=CVE-2026-21725
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-21725.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-21725
Aliases
Downstream
Related
Published
2026-02-25T13:16:05.240Z
Modified
2026-03-10T13:45:43.227366Z
Severity
  • 2.0 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

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

Affected packages

Git / github.com/grafana/grafana

Affected ranges

Type
GIT
Repo
https://github.com/grafana/grafana
Events
Introduced
277ef258d4b9a5acdf2932347c6a4ca72d739b28
Fixed
46a02dc12a085445ab105b72fa159248f7d1dc9d
Database specific 
{
    "versions": [
        {
            "introduced": "11.0.0"
        },
        {
            "fixed": "12.4.1"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-21725.json"