CVEvulnerability
CVE-2026-2651
9.0 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2026-05-25
- Last modified
- 2026-07-21
- Assigner
- [email protected]
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 9.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- CVSS 3.0 ([email protected])
- 9.0 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-1220, CWE-862
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.
Affected configurations
• lfprojects mlflow (<= 3.10.1)
Related
References
- 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 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2481117 bugzilla.redhat.com
- 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 security.access.redhat.com