SB2026022533 - Authorization bypass in Grafana datasource deletion
Published: February 25, 2026
Security Bulletin ID
SB2026022533
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper authorization (CVE-ID: CVE-2026-21725)
CWE-ID: CWE-285 - Improper Authorization
CVSSv4: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to bypass certain security restrictions.
The vulnerability exists due to a race condition in the data source deletion process. A remote user without permissions to do so can within a very short timeframe (30 seconds) delete data sources that were restored after previous deletion.
Remediation
Install update from vendor's website.