CVE catalog
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 bypass experiment-leve
- Severity
- High · CVSS 8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.55% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | mlflow | Not reported | 3.14.0 | fixed |
| Pip | mlflow | Not reported | 3.13.0rc0 | fixed |
| Cpe | mlflow | Not reported | 3.14.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | mlflow | cpe | Not reported | 3.14.0 | Not reported | Not reported | Not reported |
| Pip | mlflow | pip | Not reported | 3.13.0rc0 | Not reported | GHSA-2CM6-R77W-6G96 | Not reported |
| Cpe | mlflow | cpe | Not reported | 3.14.0 | Not reported | NVD-CVE-2026-8147 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/advisories/GHSA-2cm6-r77w-6g96]
- [https://github.com/mlflow/mlflow/commit/f9b1eb510478570609ef451984a255775aa4b937]
- [https://huntr.com/bounties/b00c3ddd-373e-492f-9bf0-41a28bb21ed5]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-8147]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8147.json]
[FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]