CVE-2026-59225

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-59225
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59225.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-59225
Aliases
Published
2026-07-09T17:12:14Z
Modified
2026-10-28T02:30:50Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L CVSS Calculator
Summary
Open WebUI: Arena task endpoints can bypass underlying model access controls
Details

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.12 before 0.10.0, an authenticated non-admin user with read access to an arena wrapper model can reach a restricted underlying model through task endpoints such as /api/v1/tasks/moa/completions. The normal chat route resolves arena models before the final chat dispatch and therefore re-checks the selected underlying model. The task routes call utils.chat.generate_chat_completion() directly. In that direct path, arena fallback resolution happens after the wrapper access check and then recurses with bypass_filter=True, skipping the selected submodel's access check. This issue is fixed in version 0.10.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59225.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
9bd84258d09eefe7bf975878fb0e31a5dadfe0f8
Fixed
4d2e13cf2bcc451b33bb6374bea4d2163e6cc94c
Fixed
dc4924b66e655b315e3be4430a3e51b7d5c20acc
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0.8.12"
                },
                {
                    "fixed": "0.10.0"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "dc4924b66e655b315e3be4430a3e51b7d5c20acc"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v0.10.0",
            "range": [
                {
                    "fixed": "4d2e13cf2bcc451b33bb6374bea4d2163e6cc94c"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v0.*
v0.8.12
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-2026-59225.json"