CVE-2021-36156

Medium

Description

An issue was discovered in Grafana Loki through 2.2.1. The header value X-Scope-OrgID is used to construct file paths for rules files, and if crafted to conduct directory traversal such as ae ../../sensitive/path/in/deployment pathname, then Loki will attempt to parse a rules file at that location and include some of the contents in the error message.

SeverityMedium
CVSS5.3
Exploit probability—
ProductGrafana Loki
PublishedAug 3, 2021
First seenAug 3, 2021

How to fix

Update
  • github.com/grafana/loki2.3.0 or later

Affected products

ProductAffected versionsFixed in
grafana lokiv ≤ 2.2.1—
github.com/grafana/lokiGov < 2.3.02.3.0

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CVE-2021-36156 · Grafana Loki · Dark Radar