Paper/Archive/CVE-2026-0545

CVE-2026-0545

mlflow mlflow/mlflow — Missing Authentication for Critical Function in mlflow/mlflow

Description · from the CVE record

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

ProductAffectedFixed inSource
mlflow/mlflowunspecified – latest–CNA
Red Hat OpenShift AI 3.4see advisory1787073866redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787073873redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787073459redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787073611redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787073451redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787073451redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787121387redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787074331redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787073605redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787073546redhat-SADP
Red Hat OpenShift AI 3.4see advisory1787073717redhat-SADP

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
@huntr_ai (CNA)9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
redhat-SADP (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: partial

References

refhuntr.com/bounties/b2e5b028-9541-4d29-8703-a76f1a3734d8refaccess.redhat.com/security/cve/CVE-2026-0545refbugzilla.redhat.com/show_bug.cgi?id=2454889refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0545.jsonadvisoryaccess.redhat.com/errata/RHSA-2026:60520