CVE-2026-8147: In MLflow versions prior to 3.14.0, when running with authentication enabled, the trace API endpoints lack proper authorization validators. This allows any authenticated user to by
In MLflow versions prior to 3.14.0, when running with authentication enabled, the trace API endpoints lack proper authorization validators. This allows any authenticated user to bypass experiment-level authorization controls on all trace operations, including reading, deleting, and modifying traces on experiments they do not have permission to access. The issue arises from the _before_request handler, which does not register authorization validators for trace endpoints, resulting in requests proceeding without validation. This vulnerability can expose sensitive data, destroy audit logs, and allow unauthorized modifications.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-8147
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-81470.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-8147 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for In MLflow
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-13484: A vulnerability has been found in MLflow up to 4666cffc7912ea606d592fc38d6a75e2935f65e7. The i…nvd · 2026-06-28
- criticalGHSA-g35p-px32-whv6: MLflow: Environment variable injection in AI Gateway secrets enables server-side credenti…ghsa · 2026-06-03
- mediumGHSA-r5m9-wm49-959f: MLflow: Any authenticated user can enumerate all gateway secrets, endpoints, and model de…ghsa · 2026-06-02
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