---
id: CVE-2024-12534
aliases:
  - GHSA-g3mx-83mp-3rwc
  - PYSEC-2026-1733
title: Open WebUI Uncontrolled Resource Consumption vulnerability
summary: Open WebUI Uncontrolled Resource Consumption vulnerability
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
vendor: open-webui
product: open-webui
ecosystem: pip
affected:
  - open-webui <= 0.3.32
  - open-webui <= 0.3.32
published: '2025-03-20'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-g3mx-83mp-3rwc'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2024-12534'
  - url: 'https://github.com/open-webui/open-webui'
  - url: >-
      https://github.com/open-webui/open-webui/blob/e8babe62bc8e466be0367703fd062a981f5c2394/src/lib/apis/auths/index.ts#L113-L142
  - url: 'https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76'
tags:
  - osv
  - pip
epss: 0.00811
epssPercentile: 0.53729
ingestedAt: '2026-07-08T18:25:49.206Z'
---

## Overview

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.

## Affected packages

- `open-webui <= 0.3.32`
- `open-webui <= 0.3.32`

## Remediation

Refer to the advisory for the patched release.