Answer in brief
CVE-2026-2611 records a Critical severity (CVSS 9.6) vulnerability in MLflow: Improper Origin Validation in MLflow Assistant /ajax-api Endpoints Enables Browser-Mediated Local Command Execution. The current sources do not mark it as known exploited. The current feed maps mlflow (pip), mlflow (pypi). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps mlflow (pip), mlflow (pypi). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| mlflowpip | =3.9.0 | 3.10.0 |
| mlflowpypi | >=3.9.0 <3.10.0 | 3.10.0 |
Published upstream
May 19, 2026
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Oct 5, 2026
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Jun 11, 2026
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.
Quoted source text, attributed separately from HOL analysis.