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SCA: security update for open-webui (GHSA-wch8-mhj5-9frg)

medium Tenable Cloud Security Plugin ID 443381

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior
 to 0.9.6, POST /api/chat/completions accepts an image_url.url value that, when it does NOT start with
 http://, https://, or data:image/, is interpreted as a file id and resolved against the global file table
 with no ownership check. an authenticated user can therefore set image_url.url to another user's file id,
 the server reads that file from disk, base64-encodes it, and injects the data URI into the LLM request.
 the user then prompts the LLM to describe / OCR the file and reads the content back. This vulnerability is
 fixed in 0.9.6. (CVE-2026-54009)

Solution

Update the open-webui library and its related packages to version 0.9.6 or later.

See Also

https://github.com/advisories/GHSA-wch8-mhj5-9frg

Plugin Details

Severity: Medium

ID: 443381

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 6/18/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N

CVSS Score Source: CVE-2026-54009

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/17/2026

Vulnerability Publication Date: 6/17/2026

Reference Information

CVE: CVE-2026-54009

cwe: CWE-639