What is CVE-2026-96804?

CVE-2026-96804 is a high-severity vulnerability in Mlflow, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-09-23.

How severe is CVE-2026-96804?

High severity. CVSS v3 base score is 8.8 out of 10.

Deserialization in Mlflow

CVE-2026-96804

MLflow's statsmodel flavor, versions 2.1.0 to 3.14.0, omits the MLFLOW_ALLOW_PICKLE_DESERIALIZATION=False security control entirely in _load_model(), which allows a remote attacker to execute arbitrary code via a crafted MLmodel artifact.

Vulnerability class: Insecure Deserialization

Published 2026-09-23 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Mlflow

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

kb.cert.org/vuls/id/369093

Frequently asked questions

What is CVE-2026-96804?: CVE-2026-96804 is a high-severity vulnerability in Mlflow, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-09-23.
How severe is CVE-2026-96804?: High severity. CVSS v3 base score is 8.8 out of 10.