AUGUST 16, 2026
Live Feed
Back to database
Case File

CVE-2026-70487

MEDIUM · CVSS 5.3 EPSS 0.25% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-04 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

The Open WebUI platform versions 0.8.8 to 0.11.0 are vulnerable due to improper access controls that allow authenticated users to access another user's knowledge attachments if they know the file ID. This flaw can lead to a read-only cross-user confidentiality breach, compromising sensitive information without affecting overall permissions or model validation. Organizations using affected versions should prioritize upgrading to version 0.11.0 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-70487
Severity
MEDIUM
CVSS
5.3
EPSS
0.25%

Original NVD Description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.8 until 0.11.0, inline direct model metadata accepted client-supplied knowledge attachments without filtering them against the caller's read access. Any authenticated user who knew another user's file id could have the builtin knowledge tools return indexed chunks from that file, causing a read-only cross-user confidentiality loss while leaving knowledge-base permissions and saved workspace model validation unaffected. This issue is fixed in 0.11.0.