Vulnerability in Grafana

CVE-2026-28374

Editors could delete any annotation, even those they do not have read access to. The editor user cannot create or read the annotations.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (15.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.3% 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-2026-28374: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Grafana — versions 11.6.14, 12.2.8, 12.3.6
  • Grafana Oss — versions 8.5.0, 11.6.14, 12.0.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-28374?
CVE-2026-28374 is a medium-severity vulnerability in Grafana, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-05-13.
How severe is CVE-2026-28374?
Medium severity. CVSS v3 base score is 4.3 out of 10.