CVE-2026-13484 MLflow Experiment-scoped Label Schema CRUD API authorization
Attackers can bypass authorization checks in the MLflow Experiment-scoped Label Schema CRUD API to read or modify data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-13484?
CVE-2026-13484 is a low-severity missing authorization vulnerability in Lfprojects Mlflow, published on 28 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in MLflow up to 4666cffc7912ea606d592fc38d6a75e2935f65e7. The impacted element is an unknown function of the component Experiment-scoped Label Schema CRUD API. Such manipulation leads to missing authorization. It is possible to launch the attack remotely. A high complexity level is associated with this attack. The exploitability is regarded as difficult. The exploit has been disclosed to the public and may be used. A reply to the GitHub issue explains, that "[t]he labeling schema PR has not been merged yet. The auth handlers will be added before the release."
Which versions are affected by CVE-2026-13484?
1 open source package ship an affected version, including mlflow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mlflow Bitnami | All versions | 3.13.0 |
Products include Lfprojects Mlflow.
How do I fix CVE-2026-13484?
Upgrade mlflow to 3.13.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-13484 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13484 exists.
Other vulnerabilities in Lfprojects Mlflow
- CVE-2026-64849 MLflow Server-Side Request Forgery
- CVE-2025-15379 Command Injection in mlflow/mlflow
- CVE-2024-0520 Remote Code Execution due to Full Controlled File Write in mlflow/mlflow
- CVE-2023-6977 Path Traversal: '\..\filename'
- CVE-2023-6709 Improper Neutralization of Special Elements Used in a Template Engine in mlflow/mlflow
Sources
Also known as BIT-mlflow-2026-13484, GHSA-wfp4-8wh2-c48v, MINI-rmfj-w9wj-cp4j.