Vulnerability Report

CVE-2026-0596

Title: Command Injection in MLflow model serving

Auth Bypass

Proof Of Concept

PoC Available for CVE-2026-0596

CWE Category CWE-78

Published Date Mar 31, 2026

Modified Date Apr 14, 2026

Exploit Status Available

Score 7.8 CVSS v3.0

Exploit Probability (EPSS)

1.33%

Vulnerability Summary

CVE-2026-0596: 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.

Impacted Vendors

lfprojects 1

Reference Links

https://huntr.com/bounties/2e905add-f9f5-4309-a3db-b17de5981285

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0

Source Entity [email protected]

Severity CRITICAL

9.6

Attack Vector

ADJACENT_NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns