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CVE-2023-6974

CRITICAL

MLflow Server-Side Request Forgery (SSRF)

Published June 29, 2026Updated July 1, 2026Source: osv

Summary

A malicious user could use this issue to access internal HTTP(s) servers and in the worst case (ie: aws instance) it could be abused to get a remote code execution on the victim machine.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update mlflow to 2.9.2 or later
pip install "mlflow>=2.9.2"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

PackageEcosystemAffectedFixed In
mlflow
pypi
0.0.1, 0.1.0, 0.2.0, 0.2.1 (+81 more)2.9.2

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Frequently Asked Questions

What is CVE-2023-6974?
MLflow Server-Side Request Forgery (SSRF) This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2023-6974?
CVE-2023-6974 affects mlflow. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2023-6974 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

PYSEC-2026-416
BIT-mlflow-2023-6974
GHSA-59v3-898r-qwhj

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  • CVE-2023-6018
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  • CVE-2026-64849
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  • CVE-2026-2611
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    MLflow: Improper Origin Validation in MLflow Assistant /ajax-api Endpoints Enables Browser-Mediated Local Command Execution

  • CVE-2026-64849
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    MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)

  • CVE-2026-4035
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  • CVE-2026-2635
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  • CVE-2026-0596
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