# CVE-2023-4399: Server-side request forgery in Grafana Enterprise

> Attackers can bypass request security deny lists in Grafana Enterprise using punycode encoding, allowing unauthorized host access.

- **Severity:** Medium 6.6 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 17 Oct 2023
- **Updated:** 13 Feb 2025
- **Also known as:** BIT-grafana-2023-4399, GHSA-6676-9pqr-4cw3

## What is CVE-2023-4399?

CVE-2023-4399 is a medium-severity server-side request forgery vulnerability in Grafana Grafana, published on 17 Oct 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

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.

Weakness: CWE-183 (Permissive List of Allowed Inputs)

## Which versions are affected by CVE-2023-4399?

1 open source package ship an affected version, including grafana. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `grafana` | Bitnami | From 9.4.0 | 9.4.17, 9.5.13, 10.0.9, 10.1.5 |

Products: Grafana Grafana.

## How do I fix CVE-2023-4399?

Upgrade grafana to a fixed version for your release line: 9.4.17, 9.5.13, 10.0.9 or 10.1.5.

## Is CVE-2023-4399 being exploited?

There is no known exploitation of CVE-2023-4399 in the wild and no public exploit code.

## Other vulnerabilities in Grafana Grafana

- [CVE-2021-43798](https://insights.sbomify.com/CVE-2021-43798/): Grafana Path Traversal (high 7.5, exploited in the wild)
- [CVE-2025-41115](https://insights.sbomify.com/CVE-2025-41115/): Incorrect privilege assignment (critical 10.0)
- [CVE-2022-39328](https://insights.sbomify.com/CVE-2022-39328/): Grafana vulnerable to race condition allowing privilege escalation (critical 9.8)
- [CVE-2022-28660](https://insights.sbomify.com/CVE-2022-28660/): Auth bypass in n/a (critical 9.8)
- [CVE-2022-26148](https://insights.sbomify.com/CVE-2022-26148/): Information disclosure in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4399 and fix it if it is affected.

What it is: CVE-2023-4399 is a medium-severity server-side request forgery vulnerability in Grafana Grafana, published on 17 Oct 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-4399 in the wild and no public exploit code.

Affected packages and fixed versions:
- grafana (Bitnami): affected from 9.4.0; fixed in 9.4.17, 9.5.13, 10.0.9, 10.1.5

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-4399/ (Markdown: https://insights.sbomify.com/CVE-2023-4399/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4399
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4399
- OSV: https://osv.dev/vulnerability/CVE-2023-4399

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4399/
Summaries are generated and may contain mistakes; the official description above is the record.