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CVE-2026-70479

7.7 HIGHpublic exploit available

Published 2026-08-04 · Updated 2026-08-05

AI risk analysis

Summary
The flaw allows an authenticated user to use JavaScript to access blocked internal addresses, potentially exposing sensitive data in web-search or RAG output.
Exploitability
Exploitation requires an authenticated user with access to the affected feature and knowledge of internal addresses. The risk is moderate due to the need for authentication.
Blast radius
If exploited, the impact is limited to the data exposed in web-search or RAG output, but could still be significant if sensitive information is involved.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Upgrade to version 0.11.0 or later.
webauth-bypassdata-exposure

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

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.

CVSS vector

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

Weaknesses

CWE-918

Public exploit & PoC references

References

Data: NVD (public domain). Analysis: local $0 model. Defensive use only.