In short
- CVE-2021-36156 is a MEDIUM (CVSS 5.3) vulnerability affecting github.com/grafana/loki, loki (grafana).
- Chance of exploitation in the next 30 days (EPSS): 1.5%, higher than 73.9% of all vulnerabilities.
- Fix: update to 2.3.0 or later.
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.
NVD 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.
More vulnerabilities in github.com/grafana/loki
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