Grafana is an open-source platform for monitoring and observability.

In Grafana Enterprise, Request security is a deny list that allows admins to configure Grafana in a way so that the instance doesn’t call specific hosts.

However, the restriction can be bypassed used punycode encoding of the characters in the request address.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-4399
• https://grafana.com/security/security-advisories/cve-2023-4399/
• https://security.netapp.com/advisory/ntap-20231208-0003/