What is CVE-2026-0545?

CVE-2026-0545 is a critical-severity vulnerability in Mlflow Mlflow/mlflow, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-04-03.

How severe is CVE-2026-0545?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Mlflow Mlflow/mlflow

CVE-2026-0545

In mlflow/mlflow, the FastAPI job endpoints under `/ajax-api/3.0/jobs/*` are not protected by authentication or authorization when the `basic-auth` app is enabled. This vulnerability affects the latest version of the repository. If job exe…

Vulnerability class: Broken Authentication

EPSS: 0.108 (93.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Mlflow Mlflow/mlflow — versions unspecified

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

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Frequently asked questions

What is CVE-2026-0545?: CVE-2026-0545 is a critical-severity vulnerability in Mlflow Mlflow/mlflow, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-04-03.
How severe is CVE-2026-0545?: Critical severity. CVSS v3 base score is 9.1 out of 10.