CVE-2026-70487

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Source
https://cve.org/CVERecord?id=CVE-2026-70487
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70487.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-70487
Aliases
Published
2026-08-04T20:16:11.523Z
Modified
2026-08-10T11:40:43.667103819Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Open WebUI: Cross-user file content disclosure via request-scoped direct model knowledge metadata
Details

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.8 until 0.11.0, inline direct model metadata accepted client-supplied knowledge attachments without filtering them against the caller's read access. Any authenticated user who knew another user's file id could have the builtin knowledge tools return indexed chunks from that file, causing a read-only cross-user confidentiality loss while leaving knowledge-base permissions and saved workspace model validation unaffected. This issue is fixed in 0.11.0.

Database specific 
{
    "cwe_ids": [
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70487.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
79f04379801622181ef9c591374a285eac4e1c4d
Fixed
305880f2e2aeb2dda2f4b2a18a20bdcd558f7134
Fixed
f9590b8017199e56d5e953657e6498e3cef1d246
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.8.8"
        },
        {
            "fixed": "0.11.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.10.0
v0.10.1
v0.10.2
v0.8.10
v0.8.11
v0.8.12
v0.8.8
v0.8.9
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-2026-70487.json"