CVE-2026-44571 — Open WebUI is a self-hosted artificial intelligence
CVE-2026-44571 — Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.6, in standard channels (i.e., channels whose channel.type is neither group nor dm), the endpoint POST /api/v1/channels/{channel_id}/messages/{message_id}/update can be ac
What This Means For You
- If your environment is affected by CWE-862, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-44571 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-44571 - Unauthorized Message Update in Open WebUI
title: CVE-2026-44571 - Unauthorized Message Update in Open WebUI
id: scw-2026-05-15-ai-1
status: experimental
level: high
description: |
Detects the specific API endpoint POST /api/v1/channels/{channel_id}/messages/{message_id}/update being accessed. This endpoint is vulnerable in Open WebUI versions prior to 0.8.6 when access_control is set to None, allowing unauthorized users to update messages.
author: SCW Feed Engine (AI-generated)
date: 2026-05-15
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-44571/
tags:
- attack.impact
- attack.t1567
logsource:
category: webserver
detection:
selection:
cs-method:
- 'POST'
cs-uri|contains:
- '/api/v1/channels/'
- '/messages/'
- '/update'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-44571 | vulnerability | CVE-2026-44571 |
| CWE-862 | weakness | CWE-862 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 16, 2026 at 01:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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