CVE-2026-10601 | The Tempo and Loki datasource plugins construct backend HTTP… | CVSS 5.4 MEDIUM

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.

Metadata

CVE ID: CVE-2026-10601
State: PUBLISHED
Assigner: GRAFANA
Reserved: 2026-06-02 09:57 UTC
Published: 2026-06-22 13:18 UTC
Last updated: 2026-06-22 15:44 UTC
Vendor / Product: Grafana / Grafana OSS
Sources: cve.org · NVD

Severity & Metrics

5.4 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
Grafana	Grafana OSS	Cloud,OnPrem	11.6.0

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.4	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References (1)

https://grafana.com/security/security-advisories/cve-2026-10601