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SCA: security update for open-webui (GHSA-hp5m-24vp-vq2q)

high Tenable Self-Hosted Container Security Plugin ID 441619

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 0.9.0, the /responses endpoint in the OpenAI router accepts any authenticated user and forwards
 requests directly to upstream LLM providers without enforcing per-model access control. While the primary
 chat completion endpoint (generate_chat_completion) checks model ownership, group membership, and
 AccessGrants before allowing a request, the /responses proxy only validates that the user has a valid
 session via get_verified_user. This allows any authenticated user to interact with any model configured on
 the instance by sending a POST request to /api/openai/responses with an arbitrary model ID. This
 vulnerability is fixed in 0.9.0. (CVE-2026-44556)

Solution

Update the open-webui library and its related packages to version 0.9.0 or later.

See Also

https://github.com/advisories/GHSA-hp5m-24vp-vq2q

Plugin Details

Severity: High

ID: 441619

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 5/9/2026

Updated: 6/15/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52.02

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-44556

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2026

Vulnerability Publication Date: 5/8/2026

Reference Information

CVE: CVE-2026-44556