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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-70479
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-04 20:16:54 UTC
Updated2026-08-05 16:17:02 UTC
DescriptionOpen 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.

Risk And Classification

Primary CVSS: v3.1 7.7 HIGH from [email protected]

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

EPSS: 0.002600000 probability, percentile 0.175180000 (date 2026-08-05)

Problem Types: CWE-918 | CWE-918 CWE-918: Server-Side Request Forgery (SSRF)

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.7HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
3.1CNADECLARED7.7HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Open-webui Open-webui affected >= 0.9.6, < 0.11.0 Not specified

References

ReferenceSourceLinkTags
github.com/open-webui/open-webui/pull/27526 [email protected] github.com
github.com/open-webui/open-webui/commit/bef63a2ae915571d50d2722a635e8bfa... [email protected] github.com
github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/open-webui/open-webui/releases/tag/v0.11.0 [email protected] github.com
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