CVE-2026-17033 Affecting grafana-12.3-oci-compat package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.22% (11th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-GRAFANA123OCICOMPAT-19425743
  • published29 Aug 2026
  • disclosed24 Aug 2026

Introduced: 24 Aug 2026

CVE-2026-17033  (opens in a new tab)

How to fix?

There is no fixed version for Minimos:latest grafana-12.3-oci-compat.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grafana-12.3-oci-compat package and not the grafana-12.3-oci-compat package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

An authenticated attacker with Editor access or alert.instances.external:write can submit an external Alertmanager alert containing a controlled generatorURL. The attacker is authorized to create the alert, but not to execute script in another user's Grafana session.

Grafana renders alert.generatorURL directly as the Alert Details See source LinkButton href without URL-scheme sanitization or a safe-protocol allowlist. The click interceptor's :// heuristic can be bypassed by placing :// inside a JavaScript comment. When a user with read access clicks See source, the browser executes attacker-controlled JavaScript in the Grafana origin with the clicking user's permissions.

CVSS Base Scores

version 3.1