CVE Catalog

CVE-2026-70480

MediumCVSS 4.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.19%

9th percentile - higher than 9% of all known CVEs

Summary

Open WebUI from 0.6.34 to 0.11.0 renders vega and vega-lite fenced code blocks in chat content by building a Vega view without a restricted resource loader. A user who can place such a block can make another user's browser issue attacker-chosen outbound GET requests and read responses from same-origin or CORS-permissive targets.

Risk Assessment

Risk of data leakage or unauthorized requests on behalf of the user, potentially leading to confidentiality or integrity breaches.

Recommendation

Update Open WebUI to version 0.11.0 or later, which includes the fix.

Other vulnerabilities in Open WebUI

See all
Original NVD description (English source)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.34 until 0.11.0, Open WebUI renders vega and vega-lite fenced code blocks in chat content by building a Vega view in the viewer browser without a restricted resource loader. Any user who can place such a block where another user will see it can make that user browser issue attacker-chosen outbound GET requests and read responses from same-origin or CORS-permissive targets into the rendered page. This issue is fixed in 0.11.0.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS