VULNERABILITY INTELLIGENCE

CVE-2021-36156

CVSS score5.3 MEDIUM

EPSS probability1.48%

CISA KEVNot currently listed

Published2021-08-03

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Weakness classification

nvd@nist.gov: CWE-22

Primary references

cve@mitre.org — Issue Tracking, Third Party Advisory
cve@mitre.org — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory