CVE-2026-42129 — Path traversal in the Loki data source plugin

CVE-2026-42129

Path traversal in the Loki data source plugin PUBLISHED

Description (CNA)

A user with Viewer permissions can use a path traversal in the Loki data source plugin to reach administrative Loki endpoints and read sensitive backend configuration and internal service information.

Affected (CNA)

Vendor / product	Versions
Grafana / Grafana OSS	affected 11.6.0 through 11.6.14; affected 12.2.0 through 12.2.8; affected 12.3.0 through 12.3.6; affected 12.4.0 through 12.4.3; affected 13.0.0 through 13.0.1

CWE

CWE-22

References

https://grafana.com/security/security-advisories/cve-2026-42129

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.