MLflow os command injection

Summaryinfo

A vulnerability classified as critical has been found in MLflow. This vulnerability affects unknown code. Performing a manipulation results in os command injection. This vulnerability was named CVE-2026-0596. The attack needs to be approached within the local network. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in MLflow (version now known). This affects some unknown processing. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A command injection vulnerability exists in mlflow/mlflow when serving a model with `enable_mlserver=True`. The `model_uri` is embedded directly into a shell command executed via `bash -c` without proper sanitization. If the `model_uri` contains shell metacharacters, such as `$()` or backticks, it allows for command substitution and execution of attacker-controlled commands. This vulnerability affects the latest version of mlflow/mlflow and can lead to privilege escalation if a higher-privileged service serves models from a directory writable by lower-privileged users.

It is possible to read the advisory at huntr.com. This vulnerability is uniquely identified as CVE-2026-0596 since 01/05/2026. The exploitability is told to be easy. Access to the local network is required for this attack to succeed. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/31/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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• MLflow

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CPE 2.2info

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