CVE-2026-42129

Published: Jun 22, 2026Modified: Jul 10, 2026

7.7

Vector

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

Exploitability: 3.1 / Impact: 4.0

Source: security@grafana.com (Secondary)

Description

A user with Viewer permissions can use a path traversal in the Loki data source plugin to reach administrative Loki endpoints and read sensitive backend configuration and internal service information.

Affected (1)

Products: Grafana: Loki Datasource

Grafana

1 product

Loki Datasource

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Grafana Loki Datasource	All versions

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (1)

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

Source: security@grafana.com

Broken Link

Timeline

No history available yet.