CVE-2026-45400CWE-918

Open WebUI: Server-Side Request Forgery (SSRF) bypass in `validate_url`

High · published May 15, 2026

CVSS v3.1
8.5
EPSS
0%
Percentile
24.7
In the wild
Unconfirmed
What it is

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, a parsing difference between the urlparse and requests libraries led to an SSRF bypass vulnerability. This vulnerability is fixed in 0.9.5.

The record
Technical detail
CVSS v3.1
8.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00328 · 24.7th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-05-15T20:40Z
EPSS history
Timeline
  • 15 MAY 20:40Z
    Open WebUI: Server-Side Request Forgery (SSRF) bypass in `validate_url`
    cvelistv5