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Go package

github.com/grafana/loki/v3

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

Open advisories

1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. Medium, CVSS 5.3GoPublished

    Grafana Loki Path Traversal - CVE-2021-36156 Bypass

    CVE-2026-21726 · GHSA-497x-rrr9-68jp

    Affected
    • Go github.com/grafana/loki/v3 < 3.6.4
    Fixed in
    3.6.4· Vendor fix available
    Issue
    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.

    Recommended action: Upgrade to 3.6.4 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →