LokiGHSA-grj5-8x6q-hc9q
Path traversal in Grafana Loki
Medium5.3CVE-2021-36156 · Published Sep 2, 2021 · updated Aug 7, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| github.com/grafana/loki Go | < 2.3.0 | 2.3.0 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-22
- Also known as
- CVE-2021-36156
More Loki advisories
All Loki| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jun 25 | Grafana Loki Path Traversal - CVE-2021-36156 Bypass in github.com/grafana/loki Medium5.3Jun 25 | Medium5.3 | No fix yet |