CVE-2023-1387: Grafana

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

Grafana is an open-source platform for monitoring and observability. Starting with the 9.1 branch, Grafana introduced the ability to search for a JWT in the URL query parameter auth_token and use it as the authentication token. By enabling the "url_login" configuration option (disabled by default), a JWT might be sent to data sources. If an attacker has access to the data source, the leaked token could be used to authenticate to Grafana.

Affected products

• Grafana Grafana: from 9.1.0, before 9.2.17 (fixed in 9.2.17); from 9.3.0, before 9.3.13 (fixed in 9.3.13); from 9.4.0, before 9.4.9 (fixed in 9.4.9)

Published 2023-04-26. Last modified 2026-06-17.