What’s Vulnerable › Vulnerabilities

CVE-2023-1387

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-26 · updated 2026-06-17
• Weakness: CWE-200

Description

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: from 9.1.0 before 9.2.17; from 9.3.0 before 9.3.13; from 9.4.0 before 9.4.9 — fixed in 9.2.17, 9.3.13, 9.4.9

How to fix

Upgrade to a fixed version: Grafana 9.2.17, 9.3.13, 9.4.9. Check the vendor advisory for mitigations.

References

• https://github.com/grafana/bugbounty/security/advisories/GHSA-5585-m9r5-p86j
• https://grafana.com/security/security-advisories/cve-2023-1387/
• https://security.netapp.com/advisory/ntap-20230609-0003/
• https://github.com/grafana/bugbounty/security/advisories/GHSA-5585-m9r5-p86j
• https://grafana.com/security/security-advisories/cve-2023-1387/
• https://security.netapp.com/advisory/ntap-20230609-0003/

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