CVE-2026-59221

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Source
https://cve.org/CVERecord?id=CVE-2026-59221
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59221.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-59221
Aliases
Published
2026-07-09T17:13:36Z
Modified
2026-10-28T02:31:02Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
open-webui terminal proxy path traversal guard bypass via 9x encoded traversal
Details

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 before 0.10.0, _sanitize_proxy_path in backend/open_webui/routers/terminals.py decoded proxy paths only eight times, allowing a nine-times percent-encoded ../ traversal value to pass normalization checks and be decoded by the upstream terminal server. This issue is fixed in version 0.10.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22",
        "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59221.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
1a97751e376e00a1897bc3679215ae1c7bd8fd42
Fixed
4d2e13cf2bcc451b33bb6374bea4d2163e6cc94c
Fixed
05098d25a58d03738e01c4e85e8852c3b4ad849c
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0.9.6"
                },
                {
                    "fixed": "0.10.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "05098d25a58d03738e01c4e85e8852c3b4ad849c"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v0.10.0",
            "range": [
                {
                    "fixed": "4d2e13cf2bcc451b33bb6374bea4d2163e6cc94c"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.9.6
v0.*
v0.9.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59221.json"