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...
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.
Classification
CVE ID: CVE-2025-3454
CVSS Base Severity: MEDIUM
CVSS Base Score: 5.0
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Problem Types
CWE-285Affected Products
Vendor: Grafana
Product: Grafana, Grafana Enterprise
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.01% (probability of being exploited)
EPSS Percentile: 0.56% (scored less or equal to compared to others)
EPSS Date: 2025-06-08 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-3454https://grafana.com/security/security-advisories/cve-2025-3454/