---
id: CVE-2025-14279
aliases:
  - GHSA-pgqp-8h46-6x4j
  - BIT-mlflow-2025-14279
  - PYSEC-2026-1656
title: >-
  MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header
  validation
summary: >-
  MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header
  validation
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'
vendor: mlflow
product: mlflow
ecosystem: pip
affected:
  - mlflow < 3.5.0
patched:
  - mlflow 3.5.0
published: '2026-01-12'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T03:50:33.637284967Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-pgqp-8h46-6x4j'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14279'
  - url: 'https://github.com/mlflow/mlflow/pull/17910'
  - url: >-
      https://github.com/mlflow/mlflow/commit/b0ffd289e9b0d0cc32c9e3a9b9f3843ae83dbec3
  - url: 'https://github.com/mlflow/mlflow'
  - url: 'https://huntr.com/bounties/ef478f72-2e4f-44dc-8055-fc06bef03108'
tags:
  - osv
  - pip
epss: 0.00211
epssPercentile: 0.10152
ingestedAt: '2026-07-08T18:25:51.771Z'
---

## Overview

MLFlow versions up to and including 3.4.0 are vulnerable to DNS rebinding attacks due to a lack of Origin header validation in the MLFlow REST server. This vulnerability allows malicious websites to bypass Same-Origin Policy protections and execute unauthorized calls against REST endpoints. An attacker can query, update, and delete experiments via the affected endpoints, leading to potential data exfiltration, destruction, or manipulation. The issue is resolved in version 3.5.0.

## Affected packages

- `mlflow < 3.5.0`

## Remediation

Upgrade to a patched release:

- `mlflow 3.5.0`