# CVE-2024-37053: MLFlow unsafe deserialization

> Attackers can execute arbitrary code on user systems by uploading malicious scikit-learn models to the MLflow platform.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 4 Jun 2024
- **Updated:** 2 Aug 2024
- **Also known as:** BIT-mlflow-2024-37053, GHSA-43c4-9qgj-x742, PYSEC-2026-1636

## What is CVE-2024-37053?

CVE-2024-37053 is a high-severity unsafe deserialization vulnerability in Lfprojects Mlflow, published on 4 Jun 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Deserialization of untrusted data can occur in versions of the MLflow platform running version 1.1.0 or newer, enabling a maliciously uploaded scikit-learn model to run arbitrary code on an end user’s system when interacted with.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2024-37053?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `mlflow` | Bitnami | From 1.1.0 | 2.14.2 |
| `mlflow` | PyPI | From 1.1.0 to 2.14.1 | None |
| `mlflow` | PyPI | From 1.1.0 to 2.14.1 | None |
| `mlflow` | PyPI | From 1.1.0 to 2.14.1 | None |

Products: Lfprojects Mlflow.

## How do I fix CVE-2024-37053?

Upgrade mlflow to 2.14.2 or later.

## Is CVE-2024-37053 being exploited?

There is no known exploitation of CVE-2024-37053 in the wild and no public exploit code.

## 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-2024-37053 and fix it if it is affected.

What it is: CVE-2024-37053 is a high-severity unsafe deserialization vulnerability in Lfprojects Mlflow, published on 4 Jun 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-37053 in the wild and no public exploit code.

Affected packages and fixed versions:
- mlflow (Bitnami): affected from 1.1.0; fixed in 2.14.2
- mlflow (PyPI): affected from 1.1.0 up to 2.14.1; no fix listed
- mlflow (PyPI): affected from 1.1.0 up to 2.14.1; no fix listed
- mlflow (PyPI): affected from 1.1.0 up to 2.14.1; no fix listed

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-2024-37053/ (Markdown: https://insights.sbomify.com/CVE-2024-37053/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-37053
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-37053
- OSV: https://osv.dev/vulnerability/CVE-2024-37053

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-37053/
Summaries are generated and may contain mistakes; the official description above is the record.