# CVE-2023-43472: Information exposure in MLflow

> A remote attacker can obtain sensitive information by sending a crafted request to the MLflow REST API.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 5 Dec 2023
- **Updated:** 2 Aug 2024
- **Also known as:** BIT-mlflow-2023-43472, GHSA-wqxf-447m-6f5f, PYSEC-2026-1661

## What is CVE-2023-43472?

CVE-2023-43472 is a high-severity vulnerability in Lfprojects Mlflow, published on 5 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue in MLFlow versions 2.8.1 and before allows a remote attacker to obtain sensitive information via a crafted request to REST API.

## Which versions are affected by CVE-2023-43472?

4 open source packages ship an affected version, including mlflow. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `mlflow` | Bitnami | All versions | 2.8.2 |
| `mlflow` | PyPI | All versions | 2.9.0 |
| `mlflow` | PyPI | All versions | 2.9.0 |
| `mlflow` | PyPI | All versions | 2.9.0 |

Products: Lfprojects Mlflow.

## How do I fix CVE-2023-43472?

Upgrade mlflow to a fixed version for your release line: 2.8.2 or 2.9.0.

## Is CVE-2023-43472 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-43472 exists.

Public exploit code:

- MLFlow < 2.8.1 - Sensitive Information Disclosure (nuclei): http/cves/2023/CVE-2023-43472.yaml

## Other vulnerabilities in Lfprojects Mlflow

- [CVE-2026-64849](https://insights.sbomify.com/CVE-2026-64849/): MLflow Server-Side Request Forgery (critical 9.3, exploited in the wild)
- [CVE-2025-15379](https://insights.sbomify.com/CVE-2025-15379/): Command Injection in mlflow/mlflow (critical 10.0)
- [CVE-2024-0520](https://insights.sbomify.com/CVE-2024-0520/): Remote Code Execution due to Full Controlled File Write in mlflow/mlflow (critical 10.0)
- [CVE-2023-6977](https://insights.sbomify.com/CVE-2023-6977/): Path Traversal: '\..\filename' (critical 10.0)
- [CVE-2023-6709](https://insights.sbomify.com/CVE-2023-6709/): Improper Neutralization of Special Elements Used in a Template Engine in mlflow/mlflow (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-43472 and fix it if it is affected.

What it is: CVE-2023-43472 is a high-severity vulnerability in Lfprojects Mlflow, published on 5 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-43472 exists.

Affected packages and fixed versions:
- mlflow (Bitnami): affected all versions; fixed in 2.8.2
- mlflow (PyPI): affected all versions; fixed in 2.9.0
- mlflow (PyPI): affected all versions; fixed in 2.9.0
- mlflow (PyPI): affected all versions; fixed in 2.9.0

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-2023-43472/ (Markdown: https://insights.sbomify.com/CVE-2023-43472/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-43472
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-43472
- OSV: https://osv.dev/vulnerability/CVE-2023-43472

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-43472/
Summaries are generated and may contain mistakes; the official description above is the record.