Critical 9.0Published May 25, 2026

CVE-2026-2651Missing Authorization Validation in mlflow/mlflow

Updated under an hour ago (Oct 27, 2026, 8:40 PM ET)

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It affects mlflow/mlflow and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for mlflow/mlflow

Exploited in the last 30 days

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.

CVSS: 9.0 CRITICAL (v3.0, CNA)CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-862, CWE-1220
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: @huntr_ai
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

mlflow mlflow/mlflow mlflow:mlflow (from the name)	from unspecified before 3.10.0	CNA record
Red Hat Red Hat OpenShift AI (RHOAI) redhat:openshift_ai	Versions not stated	CISA ADP
lfprojects mlflow lfprojects:mlflow	through 3.10.1	NVD

References

References

https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc	exploit, third-party-advisory
https://github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f	patch
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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.