CVE-2026-42129: Path traversal in the Loki data source plugin
High · CVSS 7.7 (CVSS 3.1)EPSS 0.44%, 38th percentilePublished Updated Assigner: GRAFANA
Description
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.
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N · CWE-22
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Grafana: Grafana OSS
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- grafana.com/security/security-advisories/cve-2026-42129 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)