What’s Vulnerable › Vulnerabilities

CVE-2025-15381: Unauthorized Access to Tracing and Assessment Endpoints in mlflow/mlflow

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-27 · updated 2026-10-12
• Weakness: CWE-200

Description

In the latest version of mlflow/mlflow, when the `basic-auth` app is enabled, tracing and assessment endpoints are not protected by permission validators. This allows any authenticated user, including those with `NO_PERMISSIONS` on the experiment, to read trace information and create assessments for traces they should not have access to. This vulnerability impacts confidentiality by exposing trace metadata and integrity by allowing unauthorized creation of assessments. Deployments using `mlflow server --app-name=basic-auth` are affected.

Affected products

• mlflow/mlflow: all versions

References

• https://huntr.com/bounties/149fb2f9-ef4b-4136-a25c-20563451904c
• https://access.redhat.com/security/cve/CVE-2025-15381
• https://bugzilla.redhat.com/show_bug.cgi?id=2452341
• https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-15381.json

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