CVE-2025-14279: Mlflow MLFlow Is Vulnerable To DNS Vulnerability

HIGH
Advisory Identifier: GHSA-pgqp-8h46-6x4j
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CVSS 8.1
CWE-346
Published
Advisory Summary

CVE-2025-14279 is a HIGH (CVSS 8.1) mlflow is vulnerable to dns vulnerability (CWE-346: Origin Validation Error) affecting Mlflow libraries in the PyPI ecosystem. The issue involves mlflow is vulnerable to dns rebinding attacks due to a lack of origin header validation. Remediation is available by upgrading affected packages to version 3.5.0.

CVE-2025-14279 at a Glance

CVE Identifier CVE-2025-14279
GHSA Identifier GHSA-pgqp-8h46-6x4j
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-346: Origin Validation Error
Affected Product Mlflow
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2025-14279

To remediate this vulnerability, upgrade all affected Mlflow dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mlflow fixed: 3.5.0 
pip install mlflow>=3.5.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show mlflow

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-14279, inspect your installed packages using pip:

pip show mlflow

Analyze the terminal output to locate any version of Mlflow in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.5.0), your application is affected.

Note: The pip show mlflow command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-346: Origin Validation Error, where the product does not properly verify that the source of data or communication is valid. In Mlflow, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

MLFlow versions up to and including 3.4.0 are vulnerable to DNS rebinding attacks due to a lack of Origin header validation in the MLFlow REST server. This vulnerability allows malicious websites to bypass Same-Origin Policy protections and execute unauthorized calls against REST endpoints. An attacker can query, update, and delete experiments via the affected endpoints, leading to potential data exfiltration, destruction, or manipulation. The issue is resolved in version 3.5.0.

CVE-2025-14279 Affected Mlflow Versions

1 component(s)
Fixed Versions:
3.5.0
Product / Package Ecosystem Affected Versions Fixed Version
mlflow
pypi/mlflow
PyPI
< 3.5.0
3.5.0

References

Mlflow Source Repository REPOSITORY
https://github.com/mlflow/mlflow/pull/17910
NVD — CVE-2025-14279 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-14279
Security Fix Commit FIX COMMIT
https://github.com/mlflow/mlflow/commit/b0ffd289e9b0d0cc32c9e3a9b9f3843ae83dbec3
Mlflow Source Repository REPOSITORY
https://github.com/mlflow/mlflow
huntr.com/bounties/ef478f72-2... WEB
https://huntr.com/bounties/ef478f72-2e4f-44dc-8055-fc06bef03108

Frequently Asked Questions

What is CVE-2025-14279?
CVE-2025-14279 is a security vulnerability in Mlflow involving MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation under CWE-346: Origin Validation Error.
Which Mlflow versions are affected?
Affected versions include releases prior to 3.5.0 across affected packages: mlflow.
What version fixes CVE-2025-14279?
Upgrading to 3.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mlflow affected?
Yes, mlflow is affected in releases prior to 3.5.0. Upgrade your dependency to 3.5.0 or later.
What is the CVSS score of CVE-2025-14279?
CVE-2025-14279 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2025-14279?
CVE-2025-14279 is classified under CWE-346: Origin Validation Error (The product does not properly verify that the source of data or communication is valid.).
How can I check PyPI dependencies for CVE-2025-14279?
Run the dependency tree command: 'pip show mlflow'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-pgqp-8h46-6x4j",
  "modified" : "2026-01-13T20:30:03Z",
  "published" : "2026-01-12T09:30:31Z",
  "aliases" : [ "CVE-2025-14279" ],
  "summary" : "MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation",
  "details" : "MLFlow versions up to and including 3.4.0 are vulnerable to DNS rebinding attacks due to a lack of Origin header validation in the MLFlow REST server. This vulnerability allows malicious websites to bypass Same-Origin Policy protections and execute unauthorized calls against REST endpoints. An attacker can query, update, and delete experiments via the affected endpoints, leading to potential data exfiltration, destruction, or manipulation. The issue is resolved in version 3.5.0.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "mlflow"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-14279"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mlflow/mlflow/pull/17910"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mlflow/mlflow/commit/b0ffd289e9b0d0cc32c9e3a9b9f3843ae83dbec3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mlflow/mlflow"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.com/bounties/ef478f72-2e4f-44dc-8055-fc06bef03108"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-346" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-01-13T20:30:03Z",
    "nvd_published_at" : "2026-01-12T09:15:50Z"
  }
}