Detections
Analytics

SCA: security update for open-webui (GHSA-vvxm-vxmr-624h)

medium Tenable Cloud Security Plugin ID 439359

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 version 0.8.6, an unsanitized filename field in the speech-to-text transcription endpoint allows any
 authenticated non-admin user to trigger a `FileNotFoundError` whose message — including the server's
 absolute `DATA_DIR` path — is returned verbatim in the HTTP 400 response body, confirming information
 disclosure on all default deployments. Version 0.8.6 patches the issue. (CVE-2026-28786)

Solution

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

See Also

https://github.com/advisories/GHSA-vvxm-vxmr-624h

Plugin Details

Severity: Medium

ID: 439359

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 3/27/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.1

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

CVSS Score Source: CVE-2026-28786

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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: 3/27/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-28786