What is CVE-2026-33380?

CVE-2026-33380 is a medium-severity vulnerability in Grafana, classified under Files or Directories Accessible to External Parties. CVSS score: 6.3/10. Published 2026-05-13.

How severe is CVE-2026-33380?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Vulnerability in Grafana

CVE-2026-33380

A vulnerability in SQL Expressions allows an authenticated attacker to read arbitrary files from the Grafana server's filesystem. Only instances with the sqlExpressions feature toggle enabled are vulnerable.

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

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.7th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% 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: 0.004 · change: +0.000

Affected products

Grafana
Grafana Oss — versions 11.6.0, 11.6.14, 12.0.0

Weakness classification (CWE)

CWE-552 — Files or Directories Accessible to External Parties

References

grafana.com/security/security-advisories/cve-2026-33380 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33380?: CVE-2026-33380 is a medium-severity vulnerability in Grafana, classified under Files or Directories Accessible to External Parties. CVSS score: 6.3/10. Published 2026-05-13.
How severe is CVE-2026-33380?: Medium severity. CVSS v3 base score is 6.3 out of 10.