Medium 6.5Published Oct 27, 2026

CVE-2026-116691MLflow CrewAI autologging records LLM provider API keys in logged trace spans

Updated under an hour ago (Oct 29, 2026, 11:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-200, CWE-312, CWE-532
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Oct 27, 2026
First seen by InfoSec Signals: Oct 27, 2026

Affected products

Affected products

mlflow mlflow mlflow:mlflow (from the name)	from 2.19.0, < 3.17.0	CNA record

References

References

https://github.com/mlflow/mlflow/security/advisories/GHSA-j7qq-vr8c-xvw3	x-refsource-confirm
https://github.com/mlflow/mlflow/pull/25845	x-refsource-misc
https://github.com/mlflow/mlflow/commit/20927930d27f0072fcfeb7f024f24ad8c5e77c47	x-refsource-misc
https://github.com/mlflow/mlflow/releases/tag/v3.17.0	x-refsource-misc

The CVE record on cve.org NVD's entry

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