CVE-2026-70494

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Source
https://cve.org/CVERecord?id=CVE-2026-70494
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70494.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-70494
Aliases
Published
2026-08-04T20:58:05.325Z
Modified
2026-08-12T03:51:46.327148974Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
Summary
Open WebUI: A folder write-collaborator can permanently delete the owner's chats by deleting a shared subfolder
Details

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.0, the DELETE /api/v1/folders/{id} handler in backend/openwebui/routers/folders.py allowed a user granted write access to a shared chat folder to permanently delete chats and messages belonging to the folder owner. The cascade following the authorization check is bound to the folder owner's id, but the subfolder check accepted any inherited write grant instead of requiring ownership or administrator status. A collaborator can destroy the owner's subtree or force-move chats out of it when deletecontents=false. This issue is fixed in 0.11.0.

Database specific 
{
    "cwe_ids": [
        "CWE-862",
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70494.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

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

Affected ranges

Type
GIT
Repo
https://github.com/open-webui/open-webui
Events
Introduced
4d2e13cf2bcc451b33bb6374bea4d2163e6cc94c
Fixed
915ef7d0798d3175819cedbb2f62d7bf0db78c98
Fixed
f9590b8017199e56d5e953657e6498e3cef1d246
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.10.0"
        },
        {
            "fixed": "0.11.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.10.0
v0.10.1
v0.10.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70494.json"