Inclusion of Sensitive Information in Log Files in MLflow - CVE-2026-116691
Published: November 9, 2026
Vulnerability identifier: #VU162800
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-116691
CWE-ID: CWE-532
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a low-privileged remote attacker to obtain plaintext LLM provider API keys from MLflow trace telemetry.
The vulnerability exists due to unsanitized serialization of credential-bearing CrewAI objects when an application enables MLflow CrewAI autologging and uses an LLM configured with an API key. A low-privileged remote attacker can read the automatically logged credentials through access to MLflow trace storage or the configured OTLP destination.
Affected software
MLflow
How to mitigate CVE-2026-116691
Install security update from vendor's website.
MLflow - update to 3.17.0