AUGUST 16, 2026
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Case File

CVE-2026-70491

MEDIUM · CVSS 6.5 EPSS 0.26% Public Exploit

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

CyberRota Analysis

AI-Generated

Authenticated non-admin users of Open WebUI versions 0.10.2 and earlier can exploit specific API endpoints to access sensitive Python tool source code, potentially revealing hard-coded API keys, credentials, and internal service URLs. This vulnerability poses a medium risk, as it allows unauthorized access to critical information that could compromise system security. 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-2026-70491
Severity
MEDIUM
CVSS
6.5
EPSS
0.26%

Original NVD Description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. In 0.10.2 and earlier, the GET /api/v1/tools/, GET /api/v1/tools/list, and GET /api/v1/tools/id/{id} endpoints in backend/open_webui/routers/tools.py returned full Python tool source to authenticated non-admin read-only users. ToolResponse deliberately omitted source and specs, but ToolUserResponse permitted extra fields and handlers spread a full tool model dump into the response, re-admitting omitted fields. A non-admin with a read grant can obtain another user's server-side tool source, which commonly embeds hard-coded API keys, credentials, and internal service URLs. This issue is fixed in 0.11.0.