---
id: CVE-2026-70484
title: >-
  Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI
  platform
summary: >-
  Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI
  platform. From 0.7.0 until 0.11.0, the legacy chat-completions features block
  trusted a client-supplied image_generation flag and did not re-check the
  features.i…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-862
  - CWE-863
vendor: openwebui
product: open_webui
affected:
  - 'open_webui >= 0.7.0, < 0.11.0'
patched:
  - open_webui 0.11.0
published: '2026-08-04'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T14:46:37.570'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-70484'
references:
  - url: >-
      https://github.com/open-webui/open-webui/commit/897d69a35c65f8ab54583bb9ca8dc74eab7bcd29
    label: security-advisories@github.com
  - url: 'https://github.com/open-webui/open-webui/pull/26703'
    label: security-advisories@github.com
  - url: 'https://github.com/open-webui/open-webui/releases/tag/v0.11.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/open-webui/open-webui/security/advisories/GHSA-g423-grf7-98rv
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-g423-grf7-98rv'
tags:
  - nvd
  - ghsa
  - pip
epss: 0.00238
epssPercentile: 0.15088
aliases:
  - GHSA-g423-grf7-98rv
ecosystem: pip
ingestedAt: '2026-08-04T20:41:43.886Z'
---

## Overview

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 until 0.11.0, the legacy chat-completions features block trusted a client-supplied image_generation flag and did not re-check the features.image_generation permission that the direct image routes and native function-calling path enforce. An authenticated user whose image-generation permission had been revoked could still consume the operator's configured image provider through chat completions, spending API credits and provider quota and writing generated files to operator storage, without exposing provider credentials or other users' data. This issue is fixed in 0.11.0.

## Affected

- `open_webui >= 0.7.0, < 0.11.0`

## Remediation

Upgrade past the affected range:

- `open_webui 0.11.0`

## Package advisory (CVE-2026-70484)

Affected packages:

- `open-webui >= 0.7.0, < 0.11.0`

Patched in:

- `open-webui 0.11.0`

Source: https://github.com/advisories/GHSA-g423-grf7-98rv