CVE-2025-15381

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.

CVSS 3.1

7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-25)

CWEs

CWE-200, CWE-425

Published

2026-03-27

Modified

2026-10-12

Record from

the NVD, synced 2026-10-19

Affected

• lfprojects:mlflow

Packages (OSV)

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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