Auth bypass in Grafana

CVE-2026-28380

Any Editor could delete any snapshot, even if they have no access to read or write them.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (12.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-28380: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Grafana — versions 11.6.14, 12.2.8, 12.3.6
  • Grafana Oss — versions 9.4.0, 11.6.14, 12.0.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-28380?
CVE-2026-28380 is a medium-severity vulnerability in Grafana, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-05-13.
How severe is CVE-2026-28380?
Medium severity. CVSS v3 base score is 6.5 out of 10.