---
id: CVE-2026-59714
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 0.9.5 before 0.10.0, any authenticated user can overwrite the
  content of a message in a channel they do not belong to (including private and
  DM ch…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L'
cwe:
  - CWE-862
vendor: open-webui
product: open-webui
affected:
  - 'open-webui >= 0.9.5, < 0.10.0'
patched:
  - open-webui 0.10.0
published: '2026-08-13'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:09:01.757'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59714'
references:
  - url: >-
      https://github.com/open-webui/open-webui/commit/ac3449cac91e62b08a7c28e54fcd044d14dea791
    label: security-advisories@github.com
  - url: 'https://github.com/open-webui/open-webui/pull/26385'
    label: security-advisories@github.com
  - url: 'https://github.com/open-webui/open-webui/releases/tag/v0.10.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/open-webui/open-webui/security/advisories/GHSA-x2ff-v5v8-m75m
    label: security-advisories@github.com
  - url: >-
      https://github.com/open-webui/open-webui/commit/33e4e0dcc43afcca80f9c635d762cdc76c768ba9
  - url: 'https://github.com/advisories/GHSA-x2ff-v5v8-m75m'
tags:
  - nvd
  - ghsa
  - pip
epss: 0.00478
epssPercentile: 0.38637
aliases:
  - GHSA-x2ff-v5v8-m75m
ecosystem: pip
ingestedAt: '2026-07-24T17:34:27.263Z'
---

## Overview

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 before 0.10.0, any authenticated user can overwrite the content of a message in a channel they do not belong to (including private and DM channels) by sending a chat completion request with a channel:-prefixed chat_id and a target message_id. The channel: path routes pipeline output through _make_channel_emitter, which writes to the Messages table using the caller-supplied message_id without binding it to the channel. This issue is fixed in version 0.10.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-59714)

Affected packages:

- `open-webui >= 0.9.5, < 0.10.0`

Patched in:

- `open-webui 0.10.0`

Source: https://github.com/advisories/GHSA-x2ff-v5v8-m75m