Vulnerability Report

CVE-2026-2651

Title: CVE-2026-2651

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2026-2651.

CWE Category CWE-862

Published Date May 25, 2026

Modified Date Jun 04, 2026

Exploit Status Not Found

Score 9.0 CVSS v3.0

Exploit Probability (EPSS)

0.38%

Vulnerability Summary

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.

Impacted Vendors

lfprojects 1

Reference Links

https://github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc

CVSS v3.0

Source Entity [email protected]

Severity CRITICAL

9.0

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-2651 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 04, 2026 MODIFIED

Vulnerability data updated via NVD.

May 26, 2026 MODIFIED

Vulnerability data updated via NVD.

May 26, 2026 MODIFIED

Vulnerability data updated via NVD.

May 25, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


                                    CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected Stack

No specific products linked.