What is CVE-2026-33381?

CVE-2026-33381 is a medium-severity vulnerability in Grafana, classified under Improper Access Control. CVSS score: 5.9/10. Published 2026-05-13.

How severe is CVE-2026-33381?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Grafana

CVE-2026-33381

When a user's access to mint tokens for a service account is revoked, it is sometimes still possible to do so for a few seconds after the event. The user will eventually lose access to do this.

Published 2026-05-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (25.0th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Grafana
Grafana Oss — versions 9.2.0, 11.6.14, 12.0.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

grafana.com/security/security-advisories/cve-2026-33381 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33381?: CVE-2026-33381 is a medium-severity vulnerability in Grafana, classified under Improper Access Control. CVSS score: 5.9/10. Published 2026-05-13.
How severe is CVE-2026-33381?: Medium severity. CVSS v3 base score is 5.9 out of 10.