CVE-2026-116691

MLflow CrewAI autologging records LLM provider API keys in logged trace spans

State
Published
Severity
6.5 Medium
Published
Oct 27, 2026
Updated
Oct 27, 2026
Reserved
Oct 26, 2026

Read the record on cve.org

Description

MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. From 2.19.0 until 3.17.0, mlflow.crewai.autolog() records CrewAI Agent objects without consistently sanitizing nested credential-bearing values. mlflow/crewai/autolog.py::_get_agent_attributes() converts the Agent llm field to a string that includes the provider API key, while mlflow/crewai/autolog.py::_construct_full_inputs() expands the Agent object into mlflow.spanInputs. Applications can therefore send plaintext provider credentials to the MLflow trace backend or a configured OTLP destination, where trace readers can obtain them. This issue is fixed in version 3.17.0.

Scores

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

Weaknesses

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-312 Cleartext Storage of Sensitive Information
  • CWE-532 Insertion of Sensitive Information into Log File

Affected Products

ProductVersions
mlflowmlflow
  • >= 2.19.0, < 3.17.0Affected

References

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