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

Status: published. Published: 2026-10-27. Updated: 2026-11-03.

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.

## Remediation

- fix: mlflow (PyPI): OSV reports a fixed version 3.17.0. Check the advisory for supported release branches. (source: OSV GHSA-j7qq-vr8c-xvw3) — https://github.com/advisories/GHSA-j7qq-vr8c-xvw3

## Affected products and versions

- mlflow / mlflow: >= 2.19.0, < 3.17.0 (affected). Source: CNA: GitHub_M
-  / mlflow (mlflow): 2.19.0 (affected, PyPI); 2.20.0 (affected, PyPI); 2.20.0rc0 (affected, PyPI); 2.20.1 (affected, PyPI); 2.20.2 (affected, PyPI); 2.20.3 (affected, PyPI); 2.20.4 (affected, PyPI); 2.21.0 (affected, PyPI); 2.21.0rc0 (affected, PyPI); 2.21.1 (affected, PyPI); 2.21.2 (affected, PyPI); 2.21.3 (affected, PyPI); 2.22.0 (affected, PyPI); 2.22.0rc0 (affected, PyPI); 2.22.1 (affected, PyPI); 2.22.2 (affected, PyPI); 2.22.3 (affected, PyPI); 2.22.4 (affected, PyPI); 2.22.5 (affected, PyPI); 3.0.0 (affected, PyPI); 3.0.0rc0 (affected, PyPI); 3.0.0rc1 (affected, PyPI); 3.0.0rc2 (affected, PyPI); 3.0.0rc3 (affected, PyPI); 3.0.1 (affected, PyPI); 3.1.0 (affected, PyPI); 3.1.0rc0 (affected, PyPI); 3.1.1 (affected, PyPI); 3.1.2 (affected, PyPI); 3.1.3 (affected, PyPI); 3.1.4 (affected, PyPI); 3.10.0 (affected, PyPI); 3.10.0rc0 (affected, PyPI); 3.10.1 (affected, PyPI); 3.11.0 (affected, PyPI); 3.11.0rc0 (affected, PyPI); 3.11.0rc1 (affected, PyPI); 3.11.1 (affected, PyPI); 3.12.0 (affected, PyPI); 3.12.0rc0 (affected, PyPI); 3.13.0 (affected, PyPI); 3.13.0rc0 (affected, PyPI); 3.14.0 (affected, PyPI); 3.15.0 (affected, PyPI); 3.15.1 (affected, PyPI); 3.15.2 (affected, PyPI); 3.16.0 (affected, PyPI); 3.16.1 (affected, PyPI); 3.2.0 (affected, PyPI); 3.2.0rc0 (affected, PyPI); 3.3.0 (affected, PyPI); 3.3.0rc0 (affected, PyPI); 3.3.1 (affected, PyPI); 3.3.2 (affected, PyPI); 3.4.0 (affected, PyPI); 3.4.0rc0 (affected, PyPI); 3.5.0 (affected, PyPI); 3.5.0rc0 (affected, PyPI); 3.5.1 (affected, PyPI); 3.6.0 (affected, PyPI); 3.6.0rc0 (affected, PyPI); 3.7.0 (affected, PyPI); 3.7.0rc0 (affected, PyPI); 3.8.0 (affected, PyPI); 3.8.0rc0 (affected, PyPI); 3.8.1 (affected, PyPI); 3.9.0 (affected, PyPI); 3.9.0rc0 (affected, PyPI); Ecosystem version events: introduced 2.19.0; fixed 3.17.0. Source: OSV GHSA-j7qq-vr8c-xvw3

## Severity and prioritization

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: CNA: GitHub_M

- CISA KEV: No listing in collected sources

- EPSS: 0.21% as of 2026-11-02; percentile 10.83%

- SSVC: exploitation poc; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-200, CWE-312, CWE-532

## Exploit evidence

- exploit: https://github.com/mlflow/mlflow/security/advisories/GHSA-j7qq-vr8c-xvw3 (ADP: CISA-ADP)

## References

- https://github.com/mlflow/mlflow/security/advisories/GHSA-j7qq-vr8c-xvw3 (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/mlflow/mlflow/pull/25845 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/mlflow/mlflow/commit/20927930d27f0072fcfeb7f024f24ad8c5e77c47 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/mlflow/mlflow/releases/tag/v3.17.0 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/mlflow/mlflow/security/advisories/GHSA-j7qq-vr8c-xvw3 (ADP: CISA-ADP; exploit)

- https://github.com/advisories/GHSA-j7qq-vr8c-xvw3 (OSV / GitHub Security Advisories; advisory)

- https://osv.dev/vulnerability/GHSA-j7qq-vr8c-xvw3 (OSV / GitHub Security Advisories; osv)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-116691; retrieved 2026-11-03; source updated 2026-11-03

- OSV / GitHub Security Advisories: https://osv.dev/vulnerability/GHSA-j7qq-vr8c-xvw3; retrieved 2026-11-03; source updated 2026-10-27

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-116691; retrieved 2026-11-03; source updated Not reported

Revision: 1fc463249a38d0bd04865bee592ec4e48e623003559ba28d2ae691b7e6c8c6f2

Canonical: https://y2.dev/cve/CVE-2026-116691

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