CVE-2026-21726 Affecting commercial-grafana-12.4 package, versions <12.4.5-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.41% (33rd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-COMMERCIALGRAFANA124-17890562
  • published8 Jul 2026
  • disclosed15 Apr 2026

Introduced: 15 Apr 2026

CVE-2026-21726  (opens in a new tab)

How to fix?

Upgrade Chainguard commercial-grafana-12.4 to version 12.4.5-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream commercial-grafana-12.4 package and not the commercial-grafana-12.4 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1