---
title: "CVE-2023-6014: MLflow authentication requirement bypass can allow a user to arbitrarily create an account"
url: https://erroneo.us/security/cve/CVE-2023-6014/
description: "CVE-2023-6014 (mlflow (PyPI)): An attacker is able to arbitrarily create an account in MLflow bypassing any authentication requirment."
type: vulnerability-record
section: "Security Digest"
date_published: 2023-11-16
date_modified: 2024-09-04
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-6014"
kev: false
cvss: 9.1
epss: 0.01167
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-6014: MLflow authentication requirement bypass can allow a user to arbitrarily create an account

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 1.2% , percentile 67: FIRST’s model estimates a 1.2% chance of exploitation activity in the next 30 days, higher than 67% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes mlflow (PyPI) < 2.8.0, fixed in 2.8.0 . Check your lockfile, including transitive dependencies.

## What it is

An attacker is able to arbitrarily create an account in MLflow bypassing any authentication requirment.

## Affected packages

- PyPI `mlflow` < 2.8.0 → fixed: 2.8.0

## Affected products (CVE record)

- mlflow mlflow/mlflow: unspecified <= latest

## Severity

- @huntr_ai CVSS 3.0: 9.1 `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`
- GitHub CVSS 3.1: 9.1 `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 1.17% probability of exploitation activity in the next 30 days; percentile 67.

## Sources

- [GitHub Advisory GHSA-4qq5-mxxx-m6gg](https://github.com/advisories/GHSA-4qq5-mxxx-m6gg)
- [CVE.org record CVE-2023-6014](https://www.cve.org/CVERecord?id=CVE-2023-6014)
- [NVD entry CVE-2023-6014](https://nvd.nist.gov/vuln/detail/CVE-2023-6014)
- [huntr.com](https://huntr.com/bounties/3e64df69-ddc2-463e-9809-d07c24dc1de4)
- [github.com](https://github.com/mlflow/mlflow/issues/9669)
- [github.com](https://github.com/mlflow/mlflow/pull/9700)
- [github.com](https://github.com/mlflow/mlflow/commit/32de2154ef9f946160e5dc01a4d8a449dd0bd259)
- [github.com](https://github.com/mlflow/mlflow/releases/tag/v2.8.0)

---
Source page: https://erroneo.us/security/cve/CVE-2023-6014/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt