Review reviewHigh

CVE-2026-4035

mlflow mlflow/mlflow, Red Hat OpenShift AI (RHOAI), mlflow

A vulnerability in mlflow/mlflow versions prior to 3.11.0 allows for the resolution of environment variables in AI Gateway secrets, which can be exploited to exfiltrate sensitive server-side environment credentials to an attacker-controlled endpoint. This issue arises because the `api_key` field in gateway secrets can accept `$ENV_VAR` references, which are resolved against the MLflow server's environment during runtime. The resolved secrets are then sent in provider authentication headers to the configured upstream `api_base`. This vulnerability can be exploited by low-privileged authentic...

CVSS
7.7
EPSS
0.43%
35.8% percentile
CISA KEV
Not listed
Published
2026.06.03
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.43%
Technical severityCVSS 7.7

Vulnerability overview

A vulnerability in mlflow/mlflow versions prior to 3.11.0 allows for the resolution of environment variables in AI Gateway secrets, which can be exploited to exfiltrate sensitive server-side environment credentials to an attacker-controlled endpoint. This issue arises because the `api_key` field in gateway secrets can accept `$ENV_VAR` references, which are resolved against the MLflow server's environment during runtime. The resolved secrets are then sent in provider authentication headers to the configured upstream `api_base`. This vulnerability can be exploited by low-privileged authentic...

Affected product and versions

Product
mlflow mlflow/mlflow, Red Hat OpenShift AI (RHOAI), mlflow
Affected versions
>= unspecified < 3.11.0, < 3.11.0
Fixed versions
3.11.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that mlflow mlflow/mlflow, Red Hat OpenShift AI (RHOAI), mlflow and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
CWE-201
CVE-2026-4035 — mlflow mlflow/mlflow, Red Hat OpenShift AI (RHOAI), mlflow | SECUFOCUS NOW