CVE-2026-42129
Path Traversal in Loki Datasource leads to Internal Information Disclosure
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.
INFO
Published Date :
June 22, 2026, 1:18 p.m.
Last Modified :
June 22, 2026, 1:18 p.m.
Remotely Exploit :
Yes !
Source :
GRAFANA
Affected Products
The following products are affected by CVE-2026-42129
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update the Loki datasource plugin to the latest version.
- Restrict access to sensitive Loki endpoints.
- Review and limit user role permissions.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-42129 vulnerability anywhere in the article.