Security Advisory

CVE-2026-21726

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-04-15 19:24:31

Last updated 2026-07-29 14:00:06

Assigner GRAFANA

CVSS score 5.3

State PUBLISHED

Description

The CVE-2021-36156 fix validates the namespace parameter for path traversal sequences after a single URL decode, by double encoding, an attacker can read files at the Ruler API endpoint /loki/api/v1/rules/{namespace} Thanks to Prasanth Sundararajan for reporting this vulnerability.

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