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CVE-2026-2611

9.6 · CRITICAL

In MLflow version 3.9.0, the MLflow Assistant feature introduced improper origin validation in its /ajax-api endpoints.

Published May 19, 2026CWE-346EPSS 0.41%

Overview

CVE-2026-2611 is a critical-severity vulnerability. It was published on May 19, 2026 and has a CVSS 3.1 base score of 9.6 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bcRefhuntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5aRefaccess.redhat.com/security/cve/CVE-2026-2611Refbugzilla.redhat.com/show_bug.cgi?id=2479797Refhuntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5aRefsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2611.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-2611?

CVE-2026-2611 is a critical-severity vulnerability. It was published on May 19, 2026 and has a CVSS 3.1 base score of 9.6 (CRITICAL).

How severe is CVE-2026-2611?

This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-2611?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-2611?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-2611 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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