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SCA: security update for open-webui (GHSA-4vrc-m9ch-6m3r)

high Tenable Cloud Security Plugin ID 442197

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 0.6.5, through the HTML rendering view, scripts can be injected and executed. The frontend provides a
 function to visualize the HTML content of a current chat. The content is embedded in an iFrame with the
 allow-scripts allow-forms allow-same-origin sandbox directive. This means that the content is placed in a
 sandbox but with permission to execute scripts and access the parent’s data (e.g., local storage). As a
 result, only a few functions are restricted (e.g., displaying an alert box), but in effect, the sandbox
 attribute is largely nullified. This vulnerability is fixed in 0.6.5. (CVE-2026-45303)

Solution

Update the open-webui library and its related packages to version 0.6.5 or later.

See Also

https://github.com/advisories/GHSA-4vrc-m9ch-6m3r

Plugin Details

Severity: High

ID: 442197

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 5/19/2026

Updated: 6/9/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.8

Percentile: 57.61

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 5.2

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

CVSS Score Source: CVE-2026-45303

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.9

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/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: 5/14/2026

Vulnerability Publication Date: 5/14/2026

Reference Information

CVE: CVE-2026-45303

cwe: CWE-79