CVE-2026-96775

MLflow dspy bypasses pickle deserialization control

Published Sep 23, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
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'}

Type Values Removed Values Added
Weaknesses CWE-502
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
Weaknesses

Sources

Status
PUBLISHED
Assigner
certcc
Published
Updated
Sep 23, 2026, 5:22 PM
Reserved
Sep 23, 2026, 4:17 PM
Status
Deferred
Published
Sep 23, 2026, 5:17 PM
Modified
Sep 23, 2026, 6:17 PM
Severity
Important
Public date
Sep 23, 2026, 4:28 PM