CVE-2026-42129

CVSS Score & Metrics

Base Score

7.7 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N                                    

Vulnerability Description

The Loki datasource plugin's callResource handler contains a path traversal vulnerability. An authenticated Viewer-role user can escape the plugin's resource sandbox and access administrative Loki endpoints (e.g. /config, /services, /ready) to extract sensitive backend configuration and internal service information.

Vulnerability Details

Published Date

June 22, 2026

Last Modified

June 22, 2026

Source

NVD

Vendor

Grafana

Product

Grafana OSS

External References

https://grafana.com/security/security-advisories/cve-2026-42129

CVSS Score & Metrics

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