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CVE-2026-0545

CVE-2026-0545 · Missing Authentication for Critical Function in mlflow/mlflow

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 execution is enabled (`MLFLOW_SERVER_ENABLE_JOB_EXECUTION=true`) and any job function is allowlisted, any network client can submit, read, search, and cancel jobs without credentials, bypassing basic-auth entirely. This can lead to unauthenticated remote code execution if allowed jobs perform privileged actions such as shell execution or filesystem changes. Even if jobs are deemed safe, this still constitutes an authentication bypass, potentially resulting in job spam, denial of service (DoS), or data exposure in job results.

CVSS 8.1 · High · EPSS 4.4% · Public exploit

Published
Updated

Stack: python

Affected products and versions

  • mlflow/mlflow

    Versions
    • ≥ unspecified, ≤ latest: Affected (custom)

    No fix published

  • mlflow PyPI

    Versions
    • 0.0.1
    • 0.1.0
    • 0.2.0
    • 0.2.1
    • 0.3.0
    • 0.4.0
    • 0.4.1
    • 0.4.2
    • 0.5.0
    • 0.5.1
    • 0.5.2
    • 0.6.0
    • 0.7.0
    • 0.8.0
    • 0.8.1
    • 0.8.2
    • 0.9.0
    • 0.9.0.1
    • 0.9.1
    • 1.0.0
    • 1.1.0
    • 1.1.1.dev0
    • 1.10.0
    • 1.11.0
    • 1.12.0
    • 1.12.1
    • 1.13
    • 1.13.1
    • 1.14.0
    • 1.14.1
    • 1.15.0
    • 1.16.0
    • 1.17.0
    • 1.18.0
    • 1.19.0
    • 1.2.0
    • 1.20.0
    • 1.20.1
    • 1.20.2
    • 1.21.0
    • 1.22.0
    • 1.23.0
    • 1.23.1
    • 1.24.0
    • 1.25.0
    • 1.25.1
    • 1.26.0
    • 1.26.1
    • 1.27.0
    • 1.28.0
    • 1.29.0
    • 1.3.0
    • 1.30.0
    • 1.30.1
    • 1.4.0
    • 1.5.0
    • 1.6.0
    • 1.7.0
    • 1.7.1
    • 1.7.2
    • 1.8.0
    • 1.9.0
    • 1.9.1
    • 2.0.0
    • 2.0.0rc0
    • 2.0.1
    • 2.1.0
    • 2.1.1
    • 2.10.0
    • 2.10.1
    • 2.10.2
    • 2.11.0
    • 2.11.1
    • 2.11.2
    • 2.11.3
    • 2.11.4
    • 2.12.0
    • 2.12.1
    • 2.12.2
    • 2.13.0
    • 2.13.1
    • 2.13.2
    • 2.14.0
    • 2.14.0rc0
    • 2.14.1
    • 2.14.2
    • 2.14.2.dev0
    • 2.14.3
    • 2.15.0
    • 2.15.0rc0
    • 2.15.1
    • 2.16.0
    • 2.16.1
    • 2.16.2
    • 2.17.0
    • 2.17.0rc0
    • 2.17.1
    • 2.17.2
    • 2.18.0
    • 2.18.0rc0
    • 2.19.0
    • 2.19.0rc0
    • 2.2.0
    • 2.2.1
    • 2.2.2
    • 2.20.0
    • 2.20.0rc0
    • 2.20.1
    • 2.20.2
    • 2.20.3
    • 2.20.4
    • 2.21.0
    • 2.21.0rc0
    • 2.21.1
    • 2.21.2
    • 2.21.3
    • 2.22.0
    • 2.22.0rc0
    • 2.22.1
    • 2.22.2
    • 2.22.3
    • 2.22.4
    • 2.22.5
    • 2.3.0
    • 2.3.1
    • 2.3.2
    • 2.4.0
    • 2.4.1
    • 2.4.2
    • 2.5.0
    • 2.6.0
    • 2.7.0
    • 2.7.1
    • 2.8.0
    • 2.8.1
    • 2.9.0
    • 2.9.1
    • 2.9.2
    • 3.0.0
    • 3.0.0rc0
    • 3.0.0rc1
    • 3.0.0rc2
    • 3.0.0rc3
    • 3.0.1
    • 3.1.0
    • 3.1.0rc0
    • 3.1.1
    • 3.1.2
    • 3.1.3
    • 3.1.4
    • 3.10.0
    • 3.10.0rc0
    • 3.10.1
    • 3.2.0
    • 3.2.0rc0
    • 3.3.0
    • 3.3.0rc0
    • 3.3.1
    • 3.3.2
    • 3.4.0
    • 3.4.0rc0
    • 3.5.0
    • 3.5.0rc0
    • 3.5.1
    • 3.6.0
    • 3.6.0rc0
    • 3.7.0
    • 3.7.0rc0
    • 3.8.0
    • 3.8.0rc0
    • 3.8.1
    • 3.9.0
    • 3.9.0rc0
    Affected ranges
    • ECOSYSTEM: ≤ 3.10.1

    No fix published

Original sources

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