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CVE-2026-2393— Server-Side Request Forgery (SSRF) in mlflow/mlflow

Quick assessment

Affected
mlflow mlflow/mlflow
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MLflow是MLflow开源的一个简化机器学习开发的平台，包括跟踪实验、将代码打包成可重复的运行以及共享和部署模型。 MLflow 3.9.0之前版本存在代码问题漏洞，该漏洞源于_create_webhook函数接受用户控制的url参数且未经验证，_send_webhook_request函数向攻击者控制的URL发送HTTP POST请求，可能导致经过身份验证的攻击者强制MLflow后端向内部服务、云元数据端点或任意外部服务器发送HTTP请求，进而导致云凭据窃取、内部网络访问和数据渗漏。

AI Predicted 8.1 Difficulty: Easy EPSS 0.29% · P21

Affected Version Matrix 1

VendorProduct Version RangeStatus
mlflow mlflow/mlflow unspecified< 3.10.0 affected
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I. Basic Information for CVE-2026-2393

Vulnerability Information
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Vulnerability Title
Server-Side Request Forgery (SSRF) in mlflow/mlflow
Source: CVE Program / CVE List V5
Vulnerability Description
A Server-Side Request Forgery (SSRF) vulnerability exists in MLflow versions prior to 3.9.0. The `_create_webhook()` function in `mlflow/server/handlers.py` accepts a user-controlled `url` parameter without validation, and the `_send_webhook_request()` function in `mlflow/webhooks/delivery.py` sends HTTP POST requests to this attacker-controlled URL. This allows an authenticated attacker to force the MLflow backend to send HTTP requests to internal services, cloud metadata endpoints, or arbitrary external servers. The lack of input sanitization, URL scheme filtering, or allowlist validation on the webhook URL enables exploitation, potentially leading to cloud credential theft, internal network access, and data exfiltration.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
MLflow 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MLflow是MLflow开源的一个简化机器学习开发的平台，包括跟踪实验、将代码打包成可重复的运行以及共享和部署模型。 MLflow 3.9.0之前版本存在代码问题漏洞，该漏洞源于_create_webhook函数接受用户控制的url参数且未经验证，_send_webhook_request函数向攻击者控制的URL发送HTTP POST请求，可能导致经过身份验证的攻击者强制MLflow后端向内部服务、云元数据端点或任意外部服务器发送HTTP请求，进而导致云凭据窃取、内部网络访问和数据渗漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mlflow mlflow/mlflow unspecified ~ 3.10.0 -

II. Public POCs for CVE-2026-2393

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III. Intelligence Information for CVE-2026-2393

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Patches & Fixes for CVE-2026-2393 (1)

Vendor Advisories for CVE-2026-2393 (1)

IV. Related Vulnerabilities

Same product: mlflow/mlflow
Same vendor: mlflow
Same weakness: CWE-918

V. Comments for CVE-2026-2393

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