CVE-2026-45401
- Source
- https://cve.org/CVERecord?id=CVE-2026-45401
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45401.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-45401
- Aliases
- Published
- 2026-05-15T20:37:29.248Z
- Modified
- 2026-07-15T01:48:55.347939885Z
- Severity
-
- 8.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N CVSS Calculator
- Summary
- Open WebUI: SSRF Bypass via HTTP Redirect Following in Web-Fetch and Image-Load Endpoints
- Details
-
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, the validateurl() function in backend/openwebui/retrieval/web/utils.py only validates the initial URL submitted by the caller. The HTTP clients used downstream (sync requests, async aiohttp, langchain's WebBaseLoader) follow HTTP 3xx redirects by default and do not re-validate the redirect target against the private-IP / metadata-IP block list. Any authenticated user can therefore submit a public URL that 302-redirects to an internal address (e.g. 127.0.0.1, 169.254.169.254, RFC1918) and read the internal response body via the /api/v1/retrieval/process/web endpoint, the /api/v1/images/... endpoints, the /api/chat/completions endpoint with an image_url content part, and any other route that calls these helpers. This vulnerability is fixed in 0.9.5.
- Database specific
{ "cwe_ids": [ "CWE-918" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45401.json", "cna_assigner": "GitHub_M" }- References
Affected packages
Git / github.com/open-webui/open-webui
Affected ranges
- Type
- GIT
- Repo
- https://github.com/open-webui/open-webui
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "cpe": "cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "0.9.5" } ], "source": [ "AFFECTED_FIELD", "CPE_RANGE" ] }