Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-56400

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 17.9%
CVSS Severity
CVSS v3 Score 8.3
Products affected by CVE-2026-56400


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