Path traversal in the Loki data source leads to internal information disclosure
High
- Advisory ID:
- CVE-2026-42129
- Published:
- 2026-06-09
- Product:
- Grafana
- CVSS Score:
- 7.7
- CVSS Vector:
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- Fixed Versions:
- >=11.6.15>=12.2.9>=12.3.7>=12.4.4>=13.0.2
Summary
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. Upgrade to a fixed version listed below.