---
id: CVE-2024-7983
aliases:
  - GHSA-5v9m-57mq-qc75
  - PYSEC-2026-1723
title: Open WebUI denial of service through endpoint for converting markdown
summary: Open WebUI denial of service through endpoint for converting markdown
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 <= 0.3.8
published: '2025-03-20'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-5v9m-57mq-qc75'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2024-7983'
  - url: 'https://github.com/open-webui/open-webui'
  - url: >-
      https://github.com/open-webui/open-webui/blob/eff736acd2e0bbbdd0eeca4cc209b216a1f23b6a/backend/apps/webui/routers/utils.py#L49
  - url: 'https://huntr.com/bounties/f8156ca5-1328-480f-a72b-8d3dfdad87dc'
tags:
  - osv
  - pip
epss: 0.0086
epssPercentile: 0.56973
ingestedAt: '2026-07-08T18:25:46.199Z'
---

## Overview

In version 0.3.8 of open-webui, an endpoint for converting markdown to HTML is exposed without authentication. A maliciously crafted markdown payload can cause the server to spend excessive time converting it, leading to a denial of service. The server becomes unresponsive to other requests until the conversion is complete.

## Affected packages

- `open-webui <= 0.3.8`

## Remediation

Refer to the advisory for the patched release.