PT-2026-53506 · Pypi · Mlflow

Published 2026-06-29 · Updated 2026-06-29

OSV

CVSS v3.1

9.6

Critical

Base vector

AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

A command injection vulnerability exists in 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.

Fix

Related Identifiers

PYSEC-2026-424

Affected Products

Mlflow

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-0596 · Security Note
• https://osv.dev/vulnerability/PYSEC-2026-424 · Vendor Advisory
• https://github.com/mlflow/mlflow/pull/19738 · Note
• https://github.com/mlflow/mlflow · Note
• https://github.com/mlflow/mlflow/commit/202fac4c83ccc8544c087c142b80196d0e60695c · Note
• https://huntr.com/bounties/2e905add-f9f5-4309-a3db-b17de5981285 · Note
• https://pypi.org/project/mlflow · Note
• https://github.com/advisories/GHSA-rvhj-8chj-8v3c · Note