CVE-2026-21723 Affecting system-user-grafana package, versions <1.0.0-150200.5.8.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.33% (26th percentile)

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  • Snyk IDSNYK-SLES157-SYSTEMUSERGRAFANA-20736173
  • published10 Oct 2026
  • disclosed9 Oct 2026

Introduced: 9 Oct 2026

NewCVE-2026-21723  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 system-user-grafana to version 1.0.0-150200.5.8.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream system-user-grafana package and not the system-user-grafana package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

The alertmanager templates test endpoint (/api/alertmanager/grafana/config/api/v1/templates/test) can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with anonymous access enabled.

CVSS Base Scores

version 3.1