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Findings

Vulnerability · CVE-2026-0545

In mlflow/mlflow, the FastAPI job endpoints under are not protected by authentication or authorization when the app is enabled.

Published Apr 3, 2026 · corrected/updated Aug 28, 2026 · lfprojects mlflow · evidence confidence high

In mlflow/mlflow, the FastAPI job endpoints under are not protected by authentication or authorization when the app is enabled. This vulnerability affects the latest version of the repository. If job execution is enabled ( ) 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.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2026-0545 is a critical public vulnerability record for lfprojects mlflow. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether lfprojects mlflow is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: lfprojects/mlflow. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 9.8, EPSS 4.4%. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-306. Sources contributing to this record: cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Patch and remediation

    No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 3, 2026 · NIST NVD

    Detected

    In mlflow/mlflow, the FastAPI job endpoints under are not protected by authentication or authorization when the app is enabled. This vulnerability affects the latest version of the repository. If job execution is enabled ( ) 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 unauthen

  2. Aug 28, 2026 · NIST NVD

    Updated

    In mlflow/mlflow, the FastAPI job endpoints under are not protected by authentication or authorization when the app is enabled. This vulnerability affects the latest version of the repository. If job execution is enabled ( ) 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 unauthen

Affected

  • cpe lfprojects/mlflowversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-0545

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-0545

    30-day exploitation probability 4.4%

    first.org
  • NIST NVDVulnerability recordCVE-2026-0545

    In mlflow/mlflow, the FastAPI job endpoints under are not protected by authentication or authorization when the app is enabled. This vulnerability affects the latest version of the repository. If job execution is enabled (`MLFLOW_SERVER_ENABLE_

    nvd.nist.gov

References