CVE-2026-2652 Details.
MLflow < 3.10.0 - Authentication Bypass on FastAPI Routes
Atlas does not check this one. Needs requests that change data.
To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check.
About CVE-2026-2652. What It Means.
A vulnerability in mlflow/mlflow versions 3.9.0 and earlier allows unauthenticated access to certain FastAPI routes when the server is started with authentication enabled (`--app-name basic-auth`) and served via uvicorn (ASGI). The FastAPI permission middleware only enforces authentication on `/gateway/` routes, leaving other routes such as the Job API (`/ajax-api/3.0/jobs/*`) and the OpenTelemetry trace ingestion API (`/v1/traces`) unprotected. This allows unauthenticated r…
Affected Product. What Is Hit.
- Vendor
- lfprojects
- Product
- Lfprojects MLflow
References. Where To Read More.
More CVEs In Lfprojects MLflow.
FAQ
Common Questions.
MLflow < 3.10.0 - Authentication Bypass on FastAPI Routes. A vulnerability in mlflow/mlflow versions 3.9.0 and earlier allows unauthenticated access to certain FastAPI routes when the server is started with authentication enabled (`--app-name basic-auth`) and served via uvicorn (ASGI). The FastAPI permission middleware only enforces authentication on `/gateway/` routes, leaving other routes such as the Job API (`/ajax-api/3.0/jobs/*`) and the OpenTelemetry trace ingestion API (`/v1/traces`) unprotected. This allows unauthenticated r…
No. To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check. The facts about CVE-2026-2652 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-2652 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update Lfprojects MLflow to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-2652. Atlas does not run a check for it, so nothing here says whether a particular site is affected.