CVE-2026-69146

MLflow: LogInputs endpoint bypasses per-run UPDATE authorization in basic-auth

State
Published
Severity
6.5 Medium
Published
Aug 17, 2026
Updated
Aug 18, 2026
Reserved
Aug 3, 2026

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Description

MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. From 3.13.0 until 3.15.0, LogInputs is absent from BEFORE_REQUEST_HANDLERS in the mlflow/server/auth package, allowing any authenticated user to call POST /api/2.0/mlflow/runs/log-inputs for another user's run_id and inject attacker-controlled DatasetInput records into the dataset_inputs lineage metadata without UPDATE permission. This issue is fixed in version 3.15.0.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NGitHub_M

Weaknesses

Affected Products

ProductVersions
mlflowmlflow
  • < 3.15.0Affected

References

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