VULNERABILITY INTELLIGENCE

CVE-2026-56400

CVSS score8.3 HIGH
EPSS probability0.52%
CISA KEVNot currently listed
Published2026-07-15
Last modified2026-07-16
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Description

open-webui before 0.3.14 contains a cross-origin resource sharing misconfiguration allowing arbitrary origins with allow_origins=* and authenticated requests to the /api/v1/functions endpoint. Attackers can execute arbitrary code on the openwebui instance by crafting malicious cross-site requests from attacker-controlled websites when an admin user visits them.

Weakness classification

  • disclosure@vulncheck.com: CWE-613

Primary references