CVE-2026-2611

Name: CVE-2026-2611
Creator: NVD / NIST
Published: 2026-05-19T10:16:22.983+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.6/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2026-2611 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. 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. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.0

9.6/10

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS Probability

0.32%

23.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-346

Affected Software

Vendor	Product	Versions
Lfprojects	Mlflow	>= 3.9.0, < 3.10.0

References

https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bcPatch
https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5aExploit, Third Party Advisory
https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5aExploit, Third Party Advisory

Timeline

Published: May 19, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-2611?

How severe is CVE-2026-2611?

CVE-2026-2611 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2026-2611?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-2611?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST