Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, backend/openwebui/utils/oauth.py::processpictureurl calls validateurl(pictureurl) on the initial URL only, then invokes aiohttp.ClientSession.get(pictureurl, ...) without allowredirects=False. aiohttp's default is allowredirects=True, maxredirects=10; the function does not pass the project's AIOHTTPCLIENTALLOWREDIRECTS env constant either. An attacker with a valid OAuth IdP identity can therefore submit a public URL that 302-redirects to an internal address and read the internal response body via the attacker's own profileimage_url field. This vulnerability is fixed in 0.9.6.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-918"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54008.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "0.9.6"
}
],
"cpe": "cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*",
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
]
}