CVE-2023-6015

MLflow Arbitrary File Upload

10.0 CriticalFix available

MLflow allowed arbitrary files to be PUT onto the server.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

4.49%Up 4.4 points since Nov 17, 2023

What each source reports

CVE List Score used 10.0

MLflow Arbitrary File Upload

MLflow allowed arbitrary files to be PUT onto the server.

Record: CVE-2023-6015
CVSS 3.0: 10.0 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Weakness: CWE-22
Updated: 2026-11-02

EUVDEUVD-2023-2956 10.0

MLflow allowed arbitrary files to be PUT onto the server.

Record: EUVD-2023-2956
CVSS 3.0: 10.0 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-f798-qm4r-23r5 10.0

MLflow allowed arbitrary files to be PUT onto the server

MLflow allowed arbitrary files to be PUT onto the server.

Record: GHSA-f798-qm4r-23r5
CVSS 3.0: 10.0 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Weakness: CWE-22
Updated: 2026-11-02

NVD 7.5

MLflow allowed arbitrary files to be PUT onto the server.

Record: CVE-2023-6015
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.0: 10.0 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Weakness: CWE-22
Updated: 2026-11-02

OSV 10.0

MLflow Arbitrary File Upload

MLflow allowed arbitrary files to be PUT onto the server.

Record: CVE-2023-6015
CVSS 3.0: 10.0 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Weakness: CWE-22
Updated: 2026-11-02

OSVGHSA-f798-qm4r-23r5 10.0

MLflow allowed arbitrary files to be PUT onto the server

MLflow allowed arbitrary files to be PUT onto the server.

Record: GHSA-f798-qm4r-23r5
CVSS 3.0: 10.0 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Weakness: CWE-22
Updated: 2026-11-02

OSVPYSEC-2026-420 10.0

MLflow allowed arbitrary files to be PUT onto the server

MLflow allowed arbitrary files to be PUT onto the server.

Record: PYSEC-2026-420
CVSS 3.0: 10.0 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Updated: 2026-11-02

OSVBIT-mlflow-2023-6015 No score

MLflow Arbitrary File Upload

MLflow allowed arbitrary files to be PUT onto the server.

Record: BIT-mlflow-2023-6015
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`mlflow` PyPI	before 2.8.1	2.8.1
`mlflow` Bitnami	before 2.8.1	2.8.1
`mlflow` PyPI	before 2.8.1, plus listed versions 0.0.10.1.00.2.00.2.10.3.0 Show 45 moreShow less 0.4.00.4.10.4.20.5.00.5.10.5.20.6.00.7.00.8.00.8.10.8.20.9.00.9.0.10.9.11.0.01.1.01.1.1.dev01.10.01.11.01.12.01.12.11.131.13.11.14.01.14.11.15.01.16.01.17.01.18.01.19.01.2.01.20.01.20.11.20.21.21.01.22.01.23.01.23.11.24.01.25.01.25.11.26.01.26.11.27.01.28.0	2.8.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-6015 is a critical vulnerability (CVSS 10.0) in Lfprojects Mlflow, published November 16, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.49%, the 91st percentile. Fixed in mlflow 2.8.1.

References

This page doesn't list everything

Left out here: 32 versions. The JSON record has them.