CVE-2026-54010 | Open WebUI is a self-hosted artificial intelligence platform… | CVSS 8.3 HIGH

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary file_id values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, has_access_to_file() treats the victim file as accessible through the shared chat, and the file endpoints read or delete the victim file. This vulnerability is fixed in 0.9.6.

Metadata

CVE ID: CVE-2026-54010
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-11 16:34 UTC
Published: 2026-06-23 16:48 UTC
Last updated: 2026-06-23 17:39 UTC
Primary CWE: CWE-284
CWE-284: Improper Access Control
Vendor / Product: open-webui / open-webui
Sources: cve.org · NVD

Severity & Metrics

8.3 HIGH CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
open-webui	open-webui	—	< 0.9.6

Weakness (CWE)

CWE	Source	Description
CWE-284	cna	CWE-284: Improper Access Control
CWE-639	cna	CWE-639: Authorization Bypass Through User-Controlled Key
CWE-862	cna	CWE-862: Missing Authorization

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.3	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

References (1)

https://github.com/open-webui/open-webui/security/advisories/GHSA-vrhc-3fr6-pc3c https://github.com/open-webui/open-webui/security/advisories/GHSA-vrhc-3fr6-pc3c