High severity · published Jun 28, 2026
CVE-2026-13484
MLflow Experiment-scoped Label Schema CRUD API authorization
8.8
CVSS
0.5%
EPSS
No
On KEV
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."
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ML
MLflow · Mlflow
4666cffc7912ea606d592fc38d6a75e2935f65e7 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13484
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13484
Product
https://github.com/mlflow/mlflow/
Issue Tracking
https://github.com/mlflow/mlflow/issues/23608
Third Party Advisory
https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877
Third Party Advisory
https://vuldb.com/cve/CVE-2026-13484
Third Party Advisory
https://vuldb.com/submit/837658
Third Party Advisory
https://vuldb.com/vuln/374481
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