GHSA-f74p-cwhp-x2wx
Grafana Loki datasource plugin's callResource handler contains a path traversal vulnerability.
At a glance
- Published
- Updated
- CVE
- CVE-2026-42129
- Aliases
- GO-2026-6544
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
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.
Affected packages
| Package | Versions |
|---|---|
| Go · github.com/grafana/grafana | introduced 2.0.0-beta1 |
| Go · github.com/grafana/grafana | introduced 12.0.0 |
| Go · github.com/grafana/grafana | introduced 12.3.0 |
| Go · github.com/grafana/grafana | introduced 13.0.0 |
| Go · github.com/grafana/grafana | introduced 12.4.0 |
| Go · github.com/grafana/grafana | introduced 0, fixed 1.9.2-0.20260616075434-82ef13993059 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-42129 ADVISORY
- https://github.com/grafana/grafana/commit/3fcdbc5a6e5c955bd42bd3715dd03cbad2b078c1 WEB
- https://github.com/grafana/grafana/commit/42cdc39124912a8506a0c613c319c345aa950b29 WEB
- https://github.com/grafana/grafana/commit/82ef13993059351bf21de35b8488bbd9b42df4f4 WEB
- https://github.com/grafana/grafana/commit/d27d2eba9c509d16f214d290436a6ad0bd9c6c01 WEB
- https://github.com/grafana/grafana/commit/dd5dc51681ff0133ddb2e206c2ea318713aeca16 WEB
- https://github.com/grafana/grafana/commit/eeb08ceb020c4381242d8400e5878044e9877505 WEB
- https://github.com/grafana/grafana/commit/f70d3e480274a5dbd12006338c393f4b05d441ca WEB
- https://github.com/grafana/grafana PACKAGE
- https://github.com/grafana/grafana/releases/tag/v11.6.15 WEB
- https://github.com/grafana/grafana/releases/tag/v12.2.9 WEB
- https://github.com/grafana/grafana/releases/tag/v12.3.7 WEB
- https://github.com/grafana/grafana/releases/tag/v12.4.4 WEB
- https://github.com/grafana/grafana/releases/tag/v13.0.2 WEB
- https://grafana.com/security/security-advisories/cve-2026-42129 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |