Description

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.

Severity (CVSS)

Base score5.4
SeverityMedium
VersionCVSS 3.1
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Provided byCNA

Affected products

VendorProductVersions
GrafanaGrafana OSS11.6.0

References

Authoritative sources

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Generated from the official CVE List on 22 Jun 2026 14:43 UTC.