Server-Side Request Forgery in MLflow AI Gateway by Databricks
CVE-2026-71211

7.1HIGH

Key Information:

Vendor

Mlflow

Status
Mlflow
Vendor
CVE Published:
5 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-71211?

MLflow's AI Gateway is vulnerable due to an insufficient validation mechanism for the auth_config.api_base value. When creating a gateway secret, the system allows the storage of this value without validating its scheme, host, or IP range. Consequently, the gateway proxy can process HTTP requests using this unverified api_base, potentially exposing sensitive information by allowing authenticated users—including those with read-only access—to generate secrets targeted at internal addresses. This oversight enables attackers to access cloud-instance IAM credentials through metadata services, exacerbating security risks within cloud environments.

Affected Version(s)

mlflow 0 <= 3.14.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-71211-exploit
Created by Abdivasiyev2008

References

https://github.com/mlflow/mlflow/tree/v3.14.0/mlflow
third-party-advisory

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • đź‘ľ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Abdivasiyev Sunnatillo
.