CVE-2026-10601: CWE-22 in Grafana Grafana OSS
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.
AI Analysis
Technical Summary
This vulnerability involves a path traversal issue in Grafana OSS's Tempo and Loki data source plugins. A user with Viewer-level permissions can craft requests that reach unintended backend endpoints. The impact varies based on backend setup and may include exposure of sensitive credentials, unauthorized data leakage, or unintended administrative operations. The CVSS 3.1 base score is 5.4, reflecting medium severity with network attack vector, low attack complexity, and requiring low privileges but no user interaction.
Potential Impact
An attacker with Viewer permissions can potentially access sensitive backend data such as data source credentials or internal responses. They may also trigger administrative actions on the backend, which could affect system integrity or availability. The exact impact depends on the backend configuration and how it handles these requests.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is indicated in the available data. Until a patch is available, restrict Viewer permissions carefully and monitor for suspicious activity related to Tempo and Loki data source plugins.
CVE-2026-10601: CWE-22 in Grafana Grafana OSS
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.
CVSS v3.1
Score 5.4medium
Affected software
Grafana
Grafana OSS
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a path traversal issue in Grafana OSS's Tempo and Loki data source plugins. A user with Viewer-level permissions can craft requests that reach unintended backend endpoints. The impact varies based on backend setup and may include exposure of sensitive credentials, unauthorized data leakage, or unintended administrative operations. The CVSS 3.1 base score is 5.4, reflecting medium severity with network attack vector, low attack complexity, and requiring low privileges but no user interaction.
Potential Impact
An attacker with Viewer permissions can potentially access sensitive backend data such as data source credentials or internal responses. They may also trigger administrative actions on the backend, which could affect system integrity or availability. The exact impact depends on the backend configuration and how it handles these requests.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is indicated in the available data. Until a patch is available, restrict Viewer permissions carefully and monitor for suspicious activity related to Tempo and Loki data source plugins.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GRAFANA
- Date Reserved
- 2026-06-02T09:57:26.570Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a393e89eed863c81ee5cd2f
Added to database: 06/22/2026, 13:54:17 UTC
Last enriched: 08/11/2026, 13:31:03 UTC
Last updated: 09/22/2026, 02:04:04 UTC
Views: 148
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