CVE-2026-54014

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Source

https://cve.org/CVERecord?id=CVE-2026-54014

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54014.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-54014

Aliases

Published

2026-06-23T16:45:39Z

Modified

2026-10-28T02:30:46Z

Severity

4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator

Summary

Open WebUI: Sibling-Prefix Path Traversal via /cache/{path} in open-webui/open-webui

Details

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, a path traversal vulnerability exists in open-webui's cache file serving endpoint that allows any authenticated user to read files from sibling directories outside the intended cache directory, by exploiting an incomplete startswith containment check that lacks a trailing path separator. The root cause is that serve_cache_file() in open_webui/main.py validates the resolved path with file_path.startswith(os.path.abspath(CACHE_DIR)) — without appending os.sep. This allows any path resolving to a sibling directory whose name begins with cache (e.g. cache_sibling, cache_backup, cached_models) to pass validation. This vulnerability is fixed in 0.9.6.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54014.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

Fixed

1a97751e376e00a1897bc3679215ae1c7bd8fd42

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.9.6"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "cpe": "cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.9.6"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54014.json"