CVE-2024-12537 HIGH

CVE-2024-12537: Unauthenticated Denial of Service in open-webui/open-webui

Vendor Open-Webui
Product open-webui/open-webui
Weakness CWE-770 · Uncontrolled resource consumption
Published March 20, 2025
Last update April 4, 2025

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

In version 0.3.32 of open-webui/open-webui, the absence of authentication mechanisms allows any unauthenticated attacker to access the `api/v1/utils/code/format` endpoint. If a malicious actor sends a POST request with an excessively high volume of content, the server could become completely unresponsive. This could lead to severe performance issues, causing the server to become unresponsive or experience significant degradation, ultimately resulting in service interruptions for legitimate users.

Key dates

02Disclosure timeline

March 20, 2025 CVE published
April 4, 2025 Record updated