CVE-2026-44554
High · 8.1CVSS
8.1
EPSS
0.4%
Published
May 15, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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