CVE-2026-44554

HIGH EPSS 21.1%
Published May 15, 20261mo ago · Modified Jun 17, 20261w ago
8.1 CVSS 3.1
High
Find Similar
Published May 15, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
8.1
Exploitability
2.8
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
21.1% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 1

VendorProductVersionRange
openwebuiopen_webui* <0.9.0

References 1

  • github.com https://github.com/open-webui/open-webui/security/advisories/GHSA-7r82-qhg4-6wvj
    ExploitVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.