CVE-2026-42129

high Grafana
CVSS v3 Base Score
7.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS Score
0.4%
Exploitation probability in 30 days
Top 69% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Published: June 22, 2026 (17 days ago)
Last Modified: June 30, 2026
Vendor: Grafana
Source: NVD

Description

The Loki datasource plugin's callResource handler contains a path traversal vulnerability. An authenticated Viewer-role user can escape the plugin's resource sandbox and access administrative Loki endpoints (e.g. /config, /services, /ready) to extract sensitive backend configuration and internal service information.

CWE

CWE-22

Affected Products

grafana loki datasource

References

🔗 grafana.com