CVE-2026-70485

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Source

https://cve.org/CVERecord?id=CVE-2026-70485

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70485.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-70485

Aliases

Published

2026-08-04T19:59:21.539Z

Modified

2026-08-10T11:40:56.290813097Z

Severity

7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N CVSS Calculator

Summary

Open WebUI: Any authenticated user can reach internal services and cloud metadata via NAT64-encoded URLs

Details

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.0, Open WebUI checked whether a user-supplied URL destination was globally routable by applying ipaddress.is_global to the literal IPv6 address without examining IPv4 addresses embedded in transition encodings. On a deployment with a NAT64 gateway, any verified user could wrap an internal or cloud-metadata IPv4 address in the NAT64 well-known prefix, pass the filter, and receive the internal response body through RAG URL ingestion, URL-to-markdown conversion, or web-search content retrieval. This issue is fixed in 0.11.0.

Database specific

{
    "cwe_ids": [
        "CWE-918"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70485.json"
}

References

Affected packages

Git / github.com/open-webui/open-webui

Affected ranges

Type

GIT

Repo

https://github.com/open-webui/open-webui

Events

Introduced

f31768e20e5c6b4f6da0ef657877298b359936cf

Fixed

1717b493d83c86afa82aa8bc50139250852dd2f3

Fixed

f9590b8017199e56d5e953657e6498e3cef1d246

Database specific

{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0.9.0"
        },
        {
            "fixed": "0.11.0"
        }
    ]
}

Affected versions

v0.*

v0.10.0

v0.10.1

v0.10.2

v0.9.0

v0.9.1

v0.9.2

v0.9.3

v0.9.4

v0.9.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70485.json"