CVE-2026-70479

HIGH 7.7

Open WebUI: SSRF into internal services via unvalidated sub-resource requests in the Playwright web loader

CVSS Score

7.7

EPSS Score

0.0%

EPSS Percentile

0th

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.0, with WEB_LOADER_ENGINE=playwright, the Playwright web loader validates only the top-level page request and lets sub-resource requests pass unvalidated. A page supplied by an authenticated user can use JavaScript to reach blocked internal addresses, and returned DOM can include data read from those addresses in web-search or RAG output. This issue is fixed in 0.11.0.

CWE	CWE-918
Vendor	open-webui
Product	open-webui
Published	Aug 4, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

open-webui / open-webui

>= 0.9.6, < 0.11.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95 github.com: https://github.com/open-webui/open-webui/pull/27526 github.com: https://github.com/open-webui/open-webui/commit/bef63a2ae915571d50d2722a635e8bfa753d7877 github.com: https://github.com/open-webui/open-webui/releases/tag/v0.11.0