VulnerabilityDeferred

CVE-2025-3454

This vulnerability in Grafana's datasource proxy API allows authorization checks to be bypassed by adding an extra slash character in the URL path.

MEDIUM 5.0EPSS 0.46%

Does this matter?

Lower severity and a low EPSS score (0.46%). Track it; it rarely justifies an emergency change on its own.

Description

This vulnerability in Grafana's datasource proxy API allows authorization checks to be bypassed by adding an extra slash character in the URL path. Users with minimal permissions could gain unauthorized read access to GET endpoints in Alertmanager and Prometheus datasources. The issue primarily affects datasources that implement route-specific permissions, including Alertmanager and certain Prometheus-based datasources.

CVSS 3.1: 5.0 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
EPSS: 0.46% probability · 38th percentile
CISA KEV: Not listed
Weakness: CWE-285
Source: security@grafana.com

References

https://grafana.com/security/security-advisories/cve-2025-3454/

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.