CVE-2026-8147 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-8147HIGH

mlflow mlflow/mlflow — Authorization Bypass in mlflow/mlflow

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  U  H  H  N    8.1   .0038   30.9     —

AFFECTED
  Product        Versions       Fixed
  mlflow/mlflow  unspecified –  —

TIMELINE
  May 8   Reserved by @huntr_ai
  Jul 2   EXPLOIT PUBLISHED — CVE-2026-8147 (mlflow/mlflow). Public exploit reference added.
  Jul 2   Published (CNA: @huntr_ai)

CWE-284 · CNA: @huntr_ai · CVSS v3.0 · 2 references · NVD status: Analyzed

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 8, 2026	Reserved	Reserved by @huntr_ai
July 2, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-8147 (mlflow/mlflow). Public exploit reference added.
July 2, 2026	Published	Published (CNA: @huntr_ai)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
mlflow	mlflow/mlflow	—	unspecified	—

Weaknesses

CWE-284

References (2)

https://github.com/mlflow/mlflow/commit/f9b1eb510478570609ef451984a255775aa4b937 [Patch]
https://huntr.com/bounties/b00c3ddd-373e-492f-9bf0-41a28bb21ed5 [Exploit, Third Party Advisory]

Authoritative record: CVE-2026-8147 at cve.org

Vendors: mlflow

Weaknesses: CWE-284

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-8147 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.