CVE-2026-56399CWE-918

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

Medium · published June 30, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
38.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
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
EPSS
0.00454 · 38.4th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-06-30T22:08Z
EPSS history
Timeline
  • 30 JUN 22:08Z
    Open WebUI - Server-Side Request Forgery via Location Redirect in /api/v1/retrieval/process/web
    cvelistv5