CVE-2026-17033
CVE-2026-17033 · CVE-2026-17033 CVE Record
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 6.8 · Medium · EPSS 0.2%
- Published
- Updated
Stack: applications
Affected products and versions
grafana
- Versions
- ≥ 0, ≤ 12.3.11: Affected (semver)
- ≥ 12.4.0, ≤ 12.4.9: Affected (semver)
- ≥ 13.0.0, ≤ 13.0.7: Affected (semver)
No fix published