Detections
Analytics

SCA: security update for open-webui (GHSA-4pcg-253r-rf9w)

high Tenable Cloud Security Plugin ID 442177

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 0.8.6, there is a vulnerability in chat completion API, which allows attackers to bypass tool
 restrictions, potentially enabling unauthorized actions or access. In the chat_completion API, the
 parameters tool_ids and tool_servers are supplied by the user. These parameters are used to create a
 tools_dict by the middleware. This is then used by get_tool_by_id to retrieve the appropriate tool.
 However, there is no checks in that ensures the user that uses the API has permission to use the tool,
 meaning that a user can invoke any server tool by supplying the correct tool_id or tool_servers parameters
 via the chat completion API. Moreover, the authentication token stored in the server would be used when
 invoking the tool, so the tool will be invoked with the server privilege. This vulnerability is fixed in
 0.8.6. (CVE-2026-45350)

Solution

Update the open-webui library and its related packages to version 0.8.6 or later.

See Also

https://github.com/advisories/GHSA-4pcg-253r-rf9w

Plugin Details

Severity: High

ID: 442177

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 5/19/2026

Updated: 6/1/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52.03

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2026-45350

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/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-2026-45350

cwe: CWE-862