HIGH8.1
PYSEC-2026-1656
MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation
Quick fix
PYSEC-2026-1656 — mlflow: upgrade to the fixed version with the command below.
pip install --upgrade 'mlflow>=3.5.0'Details
MLFlow versions up to and including 3.4.0 are vulnerable to DNS rebinding attacks due to a lack of Origin header validation in the MLFlow REST server. This vulnerability allows malicious websites to bypass Same-Origin Policy protections and execute unauthorized calls against REST endpoints. An attacker can query, update, and delete experiments via the affected endpoints, leading to potential data exfiltration, destruction, or manipulation. The issue is resolved in version 3.5.0.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-14279[ADVISORY]
- https://github.com/mlflow/mlflow/pull/17910[WEB]
- https://github.com/mlflow/mlflow/commit/b0ffd289e9b0d0cc32c9e3a9b9f3843ae83dbec3[WEB]
- https://github.com/mlflow/mlflow[PACKAGE]
- https://huntr.com/bounties/ef478f72-2e4f-44dc-8055-fc06bef03108[WEB]
- https://pypi.org/project/mlflow[PACKAGE]
- https://github.com/advisories/GHSA-pgqp-8h46-6x4j[ADVISORY]