CVE-2026-2651

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-2651
A vulnerability in MLflow versions <=3.10.1.dev0 allows unauthorized access to multipart upload (MPU) endpoints when the `--serve-artifacts` mode is enabled. The authorization logic does not enforce resource-level permission checks for `/mlflow-artifacts/mpu/*` endpoints, enabling attackers to overwrite artifacts belonging to other users. This can lead to unauthorized cross-user writes, model supply chain poisoning, and arbitrary code execution when compromised models are loaded. The issue is resolved in version 3.10.0.

9.0 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f Patch
https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc Exploit Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-2651
https://bugzilla.redhat.com/show_bug.cgi?id=2481117
https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc Exploit Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2651.json
Configurations

Configuration 1 (hide)

cpe:2.3:a:lfprojects:mlflow:*:*:*:*:*:*:*:*
History

21 Jul 2026, 19:10

Type Values Removed Values Added
Summary
  • (es) Una vulnerabilidad en las versiones de MLflow =3.10.1.dev0 permite el acceso no autorizado a los puntos finales de carga multiparte (MPU) cuando el modo '--serve-artifacts' está habilitado. La lógica de autorización no aplica comprobaciones de permisos a nivel de recurso para los puntos finales '/mlflow-artifacts/mpu/ ', lo que permite a los atacantes sobrescribir artefactos pertenecientes a otros usuarios. Esto puede conducir a escrituras no autorizadas entre usuarios, envenenamiento de la cadena de suministro de modelos y ejecución de código arbitrario cuando se cargan modelos comprometidos. El problema está resuelto en la versión 3.10.0.

27 Jun 2026, 05:16

Type Values Removed Values Added
CWE CWE-1220
References
  • () https://access.redhat.com/security/cve/CVE-2026-2651 -
  • () https://bugzilla.redhat.com/show_bug.cgi?id=2481117 -
  • () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2651.json -

04 Jun 2026, 15:41

Type Values Removed Values Added
CPE cpe:2.3:a:lfprojects:mlflow:*:*:*:*:*:*:*:*
First Time Lfprojects mlflow
Lfprojects
References () https://github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f - () https://github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f - Patch
References () https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc - () https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc - Exploit, Third Party Advisory

26 May 2026, 15:16

Type Values Removed Values Added
References () https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc - () https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc -

25 May 2026, 07:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-25 07:16

Updated : 2026-07-21 19:10

NVD link : CVE-2026-2651

Mitre link : CVE-2026-2651

CVE.ORG link : CVE-2026-2651

JSON object : View

Products Affected

lfprojects

  • mlflow
CWE
CWE-862

Missing Authorization

CWE-1220

Insufficient Granularity of Access Control