| Component | MLflow |
| Severity | medium (CVSS 5) |
| CVSS vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L |
| Published (NVD) | 2026-06-28 |
| Last modified | 2026-07-01 |
| Affected versions | mlflow <= 2026-05-26 |
| Fixed in | see the vendor advisory |
| Weakness | CWE-862CWE-863 |
| CISA KEV | not listed |
NVD description
A vulnerability has been found in MLflow up to 4666cffc7912ea606d592fc38d6a75e2935f65e7. The impacted element is an unknown function of the component Experiment-scoped Label Schema CRUD API. Such manipulation leads to missing authorization. It is possible to launch the attack remotely. A high complexity level is associated with this attack. The exploitability is regarded as difficult. The exploit has been disclosed to the public and may be used. A reply to the GitHub issue explains, that "[t]he labeling schema PR has not been merged yet. The auth handlers will be added before the release."
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep MLflow off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-13484
- https://github.com/mlflow/mlflow/issues/23608
- https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877
- https://vuldb.com/cve/CVE-2026-13484
- https://vuldb.com/submit/837658
- https://vuldb.com/vuln/374481
- https://github.com/mlflow/mlflow/
- https://vuldb.com/vuln/374481/cti
Read more
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