high7.7
CVE-2026-42129
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 config…
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/grafana/grafana | >= 2.0.0-beta1, < 11.6.15 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Grafana | Loki Datasource | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-f74p-cwhp-x2wx
- https://nvd.nist.gov/vuln/detail/CVE-2026-42129
- https://grafana.com/security/security-advisories/cve-2026-42129
- https://github.com/grafana/grafana/commit/3fcdbc5a6e5c955bd42bd3715dd03cbad2b078c1
- https://github.com/grafana/grafana/commit/42cdc39124912a8506a0c613c319c345aa950b29
- https://github.com/grafana/grafana/commit/82ef13993059351bf21de35b8488bbd9b42df4f4
- https://github.com/grafana/grafana/commit/d27d2eba9c509d16f214d290436a6ad0bd9c6c01
- https://github.com/grafana/grafana/commit/dd5dc51681ff0133ddb2e206c2ea318713aeca16
- https://github.com/grafana/grafana/commit/eeb08ceb020c4381242d8400e5878044e9877505
- https://github.com/grafana/grafana/commit/f70d3e480274a5dbd12006338c393f4b05d441ca
- https://github.com/grafana/grafana/releases/tag/v11.6.15
- https://github.com/grafana/grafana/releases/tag/v12.2.9
- https://github.com/grafana/grafana/releases/tag/v12.3.7
- https://github.com/grafana/grafana/releases/tag/v12.4.4
- https://github.com/grafana/grafana/releases/tag/v13.0.2