CVE-2026-44554: Open WebUI Vulnerable to RAG Poisoning via Collection Overwrite

# CVE-2026-44554: Open WebUI Vulnerable to RAG Poisoning via Collection Overwrite

https://gcdradar.vercel.app/incidents/cve-2026-44554-open-webui-vulnerable-to-rag-poisoning-via-co · AIR-2026-0636 · closed 2026-05-08

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-05-08
- AI role: Attack on AI
- Products: Open WebUI
- CVE ids: CVE-2026-44554
- CVSS: 8.1

## Summary

Open WebUI retrieval endpoints lack proper authorization checks, enabling unauthorized collection overwrites that can lead to knowledge base destruction and RAG poisoning. A security advisory has been issued for the affected component.

## What to do

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

## Latest updates

- 2026-05-15: CVE-2026-44554: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. (https://nvd.nist.gov/vuln/detail/CVE-2026-44554)
- 2026-05-08: CVE-2026-44554: Open WebUI has Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite (https://github.com/advisories/GHSA-7r82-qhg4-6wvj)

## Sources

- 2026-05-08 GitHub Advisory Database: CVE-2026-44554: Open WebUI has Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite https://github.com/advisories/GHSA-7r82-qhg4-6wvj
- 2026-05-15 NVD: CVE-2026-44554: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. https://nvd.nist.gov/vuln/detail/CVE-2026-44554

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