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CVE-2025-15381

8.1
High
EPSS 0.33%Mar 28, 2026

Auth bypass in mlflow basic-auth: read traces and create assessments without proper perms.

common questions

Is CVE-2025-15381 being exploited?

Not confirmed. CVE-2025-15381 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.33% probability of exploitation in the next 30 days.

How severe is CVE-2025-15381?

CVE-2025-15381 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2025-15381?

Not known from our data. No patch reference has been recorded for CVE-2025-15381, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.

What does CVE-2025-15381 affect?

CVE-2025-15381 affects MLflow basic-auth app (mlflow server --app-name=basic-auth). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2025-15381?

Monitor; restrict access; upgrade when patched.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
MLflow basic-auth app (mlflow server --app-name=basic-auth)
impact

Info disclosure of trace metadata and unauthorized creation of assessments via unprotected endpoints.

action required

Monitor only

affected versions
mlflow mlflow/mlflow
  • affected<= latest

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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