What is CVE-2026-27877?

CVE-2026-27877 is a medium-severity vulnerability in Grafana, classified under Cleartext Storage of Sensitive Information. CVSS score: 6.5/10. Published 2026-03-27.

How severe is CVE-2026-27877?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Grafana

CVE-2026-27877

When using public dashboards and direct data-sources, all direct data-sources' passwords are exposed despite not being used in dashboards. No passwords of proxied data-sources are exposed. We encourage all direct data-sources to be conver…

EPSS: 0.000 (4.3th percentile) — read the EPSS interpretation.

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:H/I:N/A:N.

Affected products

Grafana — versions 9.3.0, 12.0.0, 12.2.0

Weakness classification (CWE)

CWE-312 — Cleartext Storage of Sensitive Information

References

security@grafana.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-27877?: CVE-2026-27877 is a medium-severity vulnerability in Grafana, classified under Cleartext Storage of Sensitive Information. CVSS score: 6.5/10. Published 2026-03-27.
How severe is CVE-2026-27877?: Medium severity. CVSS v3 base score is 6.5 out of 10.