CVE-2026-21725

Source
https://cve.org/CVERecord?id=CVE-2026-21725
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21725.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-21725
Aliases
Downstream
Related
Published
2026-02-25T12:35:43.104Z
Modified
2026-07-30T03:52:35.360979178Z
Severity
  • 2.6 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Authorization Bypass via TOCTOU in Grafana Datasource Deletion by Name
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.
Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21725.json",
    "cna_assigner": "GRAFANA",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "v11.0.0"
                },
                {
                    "fixed": "v12.4.1"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/grafana/grafana

Affected ranges

Type
GIT
Repo
https://github.com/grafana/grafana
Events
Database specific
{
    "cpe": "cpe:2.3:a:grafana:grafana:*:-:*:*:enterprise:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "11.0.0"
        },
        {
            "fixed": "12.4.1"
        }
    ]
}

Database specific

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