What is CVE-2026-15577?

CVE-2026-15577 is a medium-severity vulnerability in Grafana Enterprise, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-10-13.

How severe is CVE-2026-15577?

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

Auth bypass in Grafana Enterprise

CVE-2026-15577

A user or service account with read-only access to Git Sync (provisioning) connections can modify a connection's configuration through its status subresource (incorrect authorization). On Grafana 12.4 the affected API is only available when the experimental provisioning feature toggle is enabled.

Vulnerability class: Broken Access Control

Published 2026-10-13 · last modified 2026-10-13.

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

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

grafana.com/security/security-advisories/cve-2026-15577 (vendor-advisory)

Frequently asked questions

What is CVE-2026-15577?: CVE-2026-15577 is a medium-severity vulnerability in Grafana Enterprise, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-10-13.
How severe is CVE-2026-15577?: Medium severity. CVSS v3 base score is 6.5 out of 10.