CVE-2026-2651— Missing Authorization Validation in mlflow/mlflow
Possible ATT&CK Techniques 3AI
T1195.002 · Compromise Software Supply Chain T1204.002 · Malicious File T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| mlflow | mlflow/mlflow | unspecified< 3.10.0 | affected |
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I. Basic Information for CVE-2026-2651
Vulnerability Information
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Vulnerability Title
Missing Authorization Validation in mlflow/mlflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| mlflow | mlflow/mlflow | unspecified ~ 3.10.0 | - |
II. Public POCs for CVE-2026-2651
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Patches & Fixes for CVE-2026-2651 (1)
Vendor Advisories for CVE-2026-2651 (1)
IV. Related Vulnerabilities
Same product: mlflow/mlflow
- CVE-2026-2734
Authorization Bypass in SearchModelVersions in mlflow/mlflow - CVE-2026-2611
Improper Origin Validation in mlflow/mlflow - CVE-2026-4137
Incomplete Fix for CVE-2025-10279: Insecure Temporary Direct - CVE-2026-2652
Authentication Bypass in mlflow/mlflow - CVE-2026-2614
Arbitrary File Read via Prompt Tag Source Validation Bypass
Same vendor: mlflow
- CVE-2026-2734
Authorization Bypass in SearchModelVersions in mlflow/mlflow - CVE-2026-2611
Improper Origin Validation in mlflow/mlflow - CVE-2026-4137
Incomplete Fix for CVE-2025-10279: Insecure Temporary Direct - CVE-2026-2652
Authentication Bypass in mlflow/mlflow - CVE-2026-2614
Arbitrary File Read via Prompt Tag Source Validation Bypass
Same weakness: CWE-862
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V. Comments for CVE-2026-2651
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