CRITICAL 9.6

PYSEC-2026-418

MLflow: Improper Origin Validation in MLflow Assistant /ajax-api Endpoints Enables Browser-Mediated Local Command Execution

상세

In MLflow version 3.9.0, the MLflow Assistant feature introduced improper origin validation in its /ajax-api endpoints. This vulnerability allows a remote attacker to exploit cross-origin requests from a malicious webpage to interact with the MLflow Assistant running on a victim's local machine. By bypassing the loopback-only restriction, the attacker can modify the Assistant's configuration to enable full access, which in turn allows the execution of arbitrary commands via the Claude Code sub-agent. This issue is resolved in version 3.10.0.

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영향 패키지

PyPI / mlflow

최초 영향 버전: 3.9.0 수정 버전: 3.10.0

수정 pip install --upgrade 'mlflow>=3.10.0'

참고

https://nvd.nist.gov/vuln/detail/CVE-2026-2611 [ADVISORY]
https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc [WEB]
https://github.com/mlflow/mlflow [PACKAGE]
https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a [WEB]
https://pypi.org/project/mlflow [PACKAGE]
https://github.com/advisories/GHSA-67c5-x5mf-rppq [ADVISORY]