| Component | MLflow |
| Severity | high (CVSS 7.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Published (NVD) | 2026-05-11 |
| Last modified | 2026-08-28 |
| Affected versions | mlflow < 3.10.0 |
| Fixed in | 3.10.0 |
| Weakness | CWE-22 |
| CISA KEV | not listed |
NVD description
A vulnerability in the `_create_model_version()` handler of `mlflow/server/handlers.py` in mlflow/mlflow versions 3.9.0 and earlier allows an unauthenticated remote attacker to read arbitrary files from the server's filesystem. The issue arises when a `CreateModelVersion` request includes the tag `mlflow.prompt.is_prompt`, which bypasses source path validation. This enables an attacker to store an arbitrary local filesystem path as the model version source. The `get_model_version_artifact_handler()` function later uses this source to serve files without verifying the model version's prompt status, leading to a complete confidentiality compromise. This issue is fixed in version 3.10.0.
What to do
- Upgrade MLflow to
3.10.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-2614
- https://github.com/mlflow/mlflow/commit/6e801f4259d96804c73107315b24cef0f6aa115a
- https://huntr.com/bounties/19380271-3fbf-4beb-987e-6fd7069c55e6
- https://access.redhat.com/errata/RHSA-2026:34456
- https://access.redhat.com/errata/RHSA-2026:37275
- https://access.redhat.com/errata/RHSA-2026:60520
- https://access.redhat.com/security/cve/CVE-2026-2614
- https://bugzilla.redhat.com/show_bug.cgi?id=2469309
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2614.json
Read more
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