CVE-2026-54010
HIGH EPSS 15.2%
Published Jun 23, 20261w ago · Modified Jun 24, 20261w ago
8.3 CVSS 3.1
Published Jun 23, 2026 1w ago
Last Modified Jun 24, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability Low
Threat Intelligence
EPSS Exploit Probability
15.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 3
CWE-284
CWE-639
CWE-862 Missing Authorization Authorization
References 1
- github.com https://github.com/open-webui/open-webui/security/advisories/GHSA-vrhc-3fr6-pc3c
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.