CVE-2026-44554

HighCVSS 8.1/10Last modified Nov 11, 2026

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the POST /api/v1/retrieval/process/web endpoint accepts a user-supplied collection_name and an overwrite query parameter (default: True). It performs no authorization check on whether the calling user owns or has write access to the target collection. When overwrite=True, save_docs_to_vector_db calls VECTOR_DB_CLIENT.delete_collection() on the target collection before writing new content. This vulnerability is fixed in 0.9.0.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-862

Affected software

VendorProductVersions
open-webuiopen-webui< 0.9.0

References

Timeline

Published
May 15, 2026
Last modified
Nov 11, 2026
NVD status
Analyzed

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CVE-2026-44554: High severity, CVSS 8.1 | Vulnix