CVE-2026-44571: Open WebUI Improper Authorization in Standard Channels

# CVE-2026-44571: Open WebUI Improper Authorization in Standard Channels

https://gcdradar.vercel.app/incidents/cve-2026-44571-open-webui-improper-authorization-in-standard · AIR-2026-0650 · closed 2026-05-11

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-05-11
- AI role: Attack on AI
- Products: Open WebUI
- CVE ids: CVE-2026-44571
- CVSS: 6.5

## Summary

An authorization bypass in Open WebUI standard channels allows users with read-only permissions to update messages they do not own. This can lead to unauthorized modification of channel message contents.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-05-15: CVE-2026-44571: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. (https://nvd.nist.gov/vuln/detail/CVE-2026-44571)
- 2026-05-11: CVE-2026-44571: Open WebUI's Improper Authorization in Standard Channels Allows Message Updates with Read Permission (https://github.com/advisories/GHSA-jgj3-r8hr-9pjw)

## Sources

- 2026-05-11 GitHub Advisory Database: CVE-2026-44571: Open WebUI's Improper Authorization in Standard Channels Allows Message Updates with Read Permission https://github.com/advisories/GHSA-jgj3-r8hr-9pjw
- 2026-05-15 NVD: CVE-2026-44571: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. https://nvd.nist.gov/vuln/detail/CVE-2026-44571

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.