CVE-2026-2611
CWE-346Published: May 19, 2026· Updated: May 19, 2026
Official 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.
Technical Analysis
CVE-2026-2611 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.6.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
News & Research Mentioning CVE-2026-2611
Microsoft has disclosed a now-patched security flaw in Windows Admin Center that could allow an attacker to escalate their privileges. Windows Admin Center is a locally deployed, browser-based management tool set that lets users manage their Windows Clients, Servers, and Clusters without the need for connecting to the cloud. The high-severity vulnerability, tracked as CVE-2026-26119, carries a [xlite_meta score:53 src:The Hacker News xlite_fp:b5d5afaedfb892df4c9cd900143927e1083834189b62bfa48806dc8cb9ea11a8]
All References (3)
Quick Facts
Related CVEs (CWE-346)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-2611 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts