Open WebUI Vulnerability in Playwright Web Loader
CVE-2026-70479

7.7HIGH

Key Information:

Vendor

Open-webui

Status
Open-webui
Vendor
CVE Published:
4 August 2026

What is CVE-2026-70479?

The Open WebUI platform, from version 0.9.6 to 0.11.0, with the PLAYWRIGHT web loader configuration, suffers from a vulnerability that inadequately validates sub-resource requests. This allows authenticated users to exploit JavaScript on a page to access restricted internal addresses. Consequently, sensitive data from these addresses can be included in responses, potentially leading to unauthorized data exposure. This issue was addressed in version 0.11.0.

Affected Version(s)

open-webui >= 0.9.6, < 0.11.0

References

https://github.com/open-webui/open-webui/security/advisor...
x_refsource_CONFIRM
https://github.com/open-webui/open-webui/pull/27526
x_refsource_MISC
https://github.com/open-webui/open-webui/commit/bef63a2ae...
x_refsource_MISC

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.