Vulnerability · Published Nov 3, 2026 · Assigned by zdi

CVE-2026-118626MLflow Tracking Server Issues Missing Authorization Privilege Escalation Vulnerability

Medium 5.4

In plain English

A medium-severity missing authorization in MLflow from MLflow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.0)5.4Medium

Exploit odds (30 days)0.2%top 86.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

MLflow Tracking Server Issues Missing Authorization Privilege Escalation Vulnerability. This vulnerability allows remote attackers to escalate privileges on affected installations of MLflow. Authentication is required to exploit this vulnerability. The specific flaw exists within the configuration of the BEFORE_REQUEST_HANDLERS. The issue results from the lack of authorization prior to allowing access to functionality. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the user. Was ZDI-CAN-32108.

Affected products (as reported)

Vendor	Product	Versions
MLflow	MLflow	3.14.0

Weakness: CWE-862 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

ZDI-26-842 x_research-advisory