CVE-2026-2393

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

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

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/mlflow/mlflow/commit/64aa0ab7207f9c649b59ba1a5f40d82196817389	Patch
https://huntr.com/bounties/04ef100d-06b5-4a70-95b1-b7be23aa8150	Exploit Third Party Advisory
https://huntr.com/bounties/04ef100d-06b5-4a70-95b1-b7be23aa8150	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:lfprojects:mlflow:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-11 18:16

Updated : 2026-06-17 10:30

NVD link : CVE-2026-2393

Mitre link : CVE-2026-2393

CVE.ORG link : CVE-2026-2393

JSON object : View

Products Affected

lfprojects

mlflow

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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