{"id":"CVE-2026-45338","aliases":["GHSA-24c9-2m8q-qhmh","PYSEC-2026-2691"],"url":"https://o3.security/vulnerability/CVE-2026-45338","summary":"Open WebUI: SSRF via OAuth Profile Picture URL in _process_picture_url (oauth.py)","details":"Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a Server-Side Request Forgery (SSRF) vulnerability exists in _process_picture_url() in backend/open_webui/utils/oauth.py (line ~1338). The function fetches arbitrary URLs from OAuth picture claims without applying validate_url(), allowing an attacker to force the server to make HTTP requests to internal resources and exfiltrate the full response. This vulnerability is fixed in 0.9.0.","published":"2026-05-15T21:46:32.132Z","modified":"2026-08-07T11:31:00.976618212Z","cvss":{"score":7.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"open-webui","fixedVersion":"0.9.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45338.json"},{"type":"ADVISORY","url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-24c9-2m8q-qhmh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45338"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:00.976618212Z"}}