CVE-2026-2611

Improper Origin Validation in mlflow/mlflow

Published: May 19, 2026Updated: Jul 15, 2026 Sources: CVE List NVDCWE-346

9.6CRITICAL

Description

In MLflow version 3.9.0, the MLflow Assistant feature introduced improper origin validation in its /ajax-api endpoints. This vulnerability allows a remote attacker to exploit cross-origin requests from a malicious webpage to interact with the MLflow Assistant running on a victim's local machine. By bypassing the loopback-only restriction, the attacker can modify the Assistant's configuration to enable full access, which in turn allows the execution of arbitrary commands via the Claude Code sub-agent. This issue is resolved in version 3.10.0.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:CScope

Changed

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-346 CWE-940

Affected Products

mlflow

oss-project

mlflow/mlflowLibraryLibrary

AI / ML / ml-framework

lfprojects

oss-projectaka mcp servers, mlflow, valkey, model context protocol servers

mlflowOn-premLibrary

AI / ML / notebook-mlops

Exploitability

Official Patch Available

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References

https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a

huntr.com

https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc

github.com

https://access.redhat.com/security/cve/CVE-2026-2611

access.redhat.com

and 2 more references View all →

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