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GHSA-grj5-8x6q-hc9q

Path traversal in Grafana Loki

Source: GitHub Advisory Database (reviewed) Moderate CVE-2021-36156

Packages

EcosystemPackageAffectedFixed in
Go github.com/grafana/loki < 2.3.0 2.3.0

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.