CVE-2026-10601 PUBLISHED

Path Traversal in Tempo and Loki Data Source Plugins — Credential Leakage and Admin Endpoint Access

Assigner: GRAFANA
Reserved: 02.06.2026 Published: 22.06.2026 Updated: 22.06.2026

The Tempo and Loki datasource plugins construct backend HTTP requests by interpolating user-supplied input into URL paths without sanitization, enabling path traversal. A Viewer-role user can: (1) capture admin-configured datasource credentials (secureJsonData custom headers) by traversing to an attacker-controlled endpoint, (2) invoke state-changing admin endpoints on Tempo (e.g. /flush, /shutdown), and (3) exfiltrate internal service data via Loki's CallResource which returns full HTTP response bodies.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS Score: 5.4

Product Status

Vendor Grafana
Product Grafana OSS
Versions Default: unaffected
  • Version 11.6.0 is affected

Credits

  • homb (Researcher) finder

References