Improper access control in Grafana - CVE-2026-33381
Published: May 18, 2026
Vulnerability identifier: #VU131641
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-33381
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Grafana Labs
Affected software:
Grafana
Grafana
Detailed vulnerability description
The vulnerability allows a remote user to generate service account tokens after permissions removal.
The vulnerability exists due to improper access control in service account token generation when permission revocation is being processed. A remote privileged user can generate a service account token during the brief window after access is revoked to generate service account tokens after permissions removal.
Access may remain usable for a few seconds after the revocation event before it is fully removed.
How to mitigate CVE-2026-33381
Install security update from vendor's website.