CVE-2024-12534 HIGH

CVE-2024-12534: Denial of Service (DoS) in open-webui/open-webui

Vendor Open-Webui
Product open-webui/open-webui
Weakness CWE-400
Published March 20, 2025
Last update March 20, 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 v0.3.32 of open-webui/open-webui, the application allows users to submit large payloads in the email and password fields during the sign-in process due to the lack of character length validation on these inputs. This vulnerability can lead to a Denial of Service (DoS) condition when a user submits excessively large strings, exhausting server resources such as CPU, memory, and disk space, and rendering the service unavailable for legitimate users. This makes the server susceptible to resource exhaustion attacks without requiring authentication.

Key dates

02Disclosure timeline

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