CVE-2026-56399 MEDIUM

CVE-2026-56399: Open WebUI - Server-Side Request Forgery via Location Redirect in /api/v1/retrieval/process/web

Vendor Open-Webui
Product open-webui
Weakness CWE-918 · SSRF
Published June 30, 2026
Last update July 1, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

What the vulnerability does

01Description

Open WebUI before 0.6.27 contains a server-side request forgery vulnerability in the /api/v1/retrieval/process/web endpoint that allows authenticated users to bypass SSRF protections. Attackers can manipulate URL parameters with location redirect headers to access internal services and potentially execute commands via instance secrets.

Key dates

02Disclosure timeline

June 30, 2026 CVE published
July 1, 2026 Record updated