Vulnerability GHSA-9493-h4f5-633x

Medium Risk
MEDIUM RISK
CVSS Score: 5.4
Score Range: 4.0–6.9
Medium severity vulnerabilities (CVSS 4.0–6.9). Important issues that meaningfully reduce security confidence.
3 months ago
June 22, 2026 at 03:30 PM UTC
Grafana: Path traversal in the Tempo and Loki data source plugins
v0.0.0-cloud - v6.1.6+incompatible
v0.0.0-cloud - v6.1.6+incompatible

Summary

Grafana: Path traversal in the Tempo and Loki data source plugins

Details

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.

Timeline

Published
3 months ago
June 22, 2026 at 03:30 PM UTC
Last Modified
2 hours ago
September 28, 2026 at 05:10 PM UTC