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Vulnerabilities

Vulnerability · CVE-2026-3198

MLflow 3.9.0 with basic-auth ( ) fails to enforce authorization checks for multiple Gateway API 'list' endpoints.

Published Jun 2, 2026 · catalog updated Jul 21, 2026 · MLflow 3.9.0 with basic-auth

Check if you run it

No confirmed exploitation is on record for CVE-2026-3198. EPSS is 0.36%. Act only if a listed version of MLflow 3.9.0 with basic-auth is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (MLflow 3.9.0 with basic-auth).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.36%
Remediation
Not established
Affected products
cpe lfprojects/mlflow

MLflow 3.9.0 with basic-auth ( ) fails to enforce authorization checks for multiple Gateway API 'list' endpoints. Specifically, the dictionary in does not include entries for , , and . This allows any authenticated user, regardless of their assigned permissions, to enumerate all gateway secrets, endpoints, and model definitions. This vulnerability exposes sensitive information, such as API keys, endpoint configurations, and proprietary model definitions, to unauthorized users.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe lfprojects/mlflow3.9.0

How to fix CVE-2026-3198

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-3198. EPSS is 0.36%. Act only if a listed version of MLflow 3.9.0 with basic-auth is installed.

Which versions are affected?

Compare what you have installed with 3.9.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-284: Improper Access Control. EPSS 0.36%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 2, 2026 · NIST NVD

    Detected

    MLflow 3.9.0 with basic-auth ( ) fails to enforce authorization checks for multiple Gateway API 'list' endpoints. Specifically, the dictionary in does not include entries for , , and . This allows any authenticated user, regardless of their assigned permissions, to enumerate all gateway secrets, endpoints, and model definitions. This vulnerability exposes sensitive information, such as API keys, e

  2. Jul 21, 2026 · NIST NVD

    Updated

    MLflow 3.9.0 with basic-auth ( ) fails to enforce authorization checks for multiple Gateway API 'list' endpoints. Specifically, the dictionary in does not include entries for , , and . This allows any authenticated user, regardless of their assigned permissions, to enumerate all gateway secrets, endpoints, and model definitions. This vulnerability exposes sensitive information, such as API keys, e

Sources

  • CVE.orgVulnerability recordCVE-2026-3198

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-3198

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2026-3198

    MLflow 3.9.0 with basic-auth ( ) fails to enforce authorization checks for multiple Gateway API 'list' endpoints. Specifically, the dictionary in does not include entries for

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.