critical

CVE-2026-0545

mlflow/mlflow: mlflow/mlflow: Unauthenticated remote code execution via unprotected job endpoints

Published 3 Apr 2026Modified 28 Aug 2026CWE 306

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

GHSA9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Red Hat8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, GHSA. Rated lower by Red Hat (high).

Description

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.

Affected packages and fixed versions

Source	Package	Fixed in
pip::GitHub Security Advisory pip	mlflow	no fix listed
chainguard	mlflow, mlflow-fips	3.16.0-r0 and 1 more
wolfi	mlflow	3.16.0-r0

Show all 4 entries from 3 sources

Source	Package	Fixed in
pip::GitHub Security Advisory pip	mlflow	no fix listed
chainguard	mlflow	3.16.0-r0
chainguard	mlflow-fips	3.11.1-r0
wolfi	mlflow	3.16.0-r0

References

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