CVE-2026-116691 MLflow CrewAI autologging records LLM provider API keys in logged trace spans
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-116691?
CVE-2026-116691 is a medium-severity vulnerability in mlflow, published on 27 Oct 2026.
Official 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.
Which versions are affected by CVE-2026-116691?
2 open source packages ship an affected version, including mlflow.
| Package | Affected | Fixed in |
|---|---|---|
mlflow PyPI | From 2.19.0 | 3.17.0 |
mlflow PyPI | From 2.19.0 | 3.17.0 |
How do I fix CVE-2026-116691?
Upgrade mlflow to 3.17.0 or later.
Is CVE-2026-116691 being exploited?
There is no known exploitation of CVE-2026-116691 in the wild and no public exploit code.
Sources
Also known as GHSA-j7qq-vr8c-xvw3.