MLflow's dspy flavor, versions >= 2.0, applies the MLFLOW_ALLOW_PICKLE_DESERIALIZATION=False security control only when the model_path ends in .pkl, which allows a remote attacker to execute arbitrary code via a crafted MLmodel artifact.

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History

Wed, 23 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
First Time appeared Mlflow
Mlflow mlflow
Vendors & Products Mlflow
Mlflow mlflow
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 23 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-502

Wed, 23 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description MLflow's dspy flavor, versions >= 2.0, applies the MLFLOW_ALLOW_PICKLE_DESERIALIZATION=False security control only when the model_path ends in .pkl, which allows a remote attacker to execute arbitrary code via a crafted MLmodel artifact.
Title MLflow dspy bypasses pickle deserialization control
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2026-09-23T17:22:35.232Z

Reserved: 2026-09-23T16:17:27.934Z

Link: CVE-2026-96775

cve-icon Vulnrichment

Updated: 2026-09-23T17:22:20.026Z

cve-icon NVD

Status : Deferred

Published: 2026-09-23T17:17:25.407

Modified: 2026-09-23T18:17:12.323

Link: CVE-2026-96775

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T21:15:09Z

Weaknesses