High severity8.3NVD Advisory· Published Jul 15, 2026· Updated Jul 16, 2026
CVE-2026-56400
CVE-2026-56400
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.
Affected products
2<0.3.14+ 1 more
- (no CPE)range: <0.3.14
- cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*range: <0.3.14
Patches
Vulnerability mechanics
References
2- www.vulncheck.com/advisories/open-webui-remote-code-execution-via-cors-misconfiguration-and-session-validationnvdExploitThird Party Advisory
- github.com/open-webui/open-webui/security/advisories/GHSA-6xcp-7mpr-m7wmnvdVendor Advisory
News mentions
0No linked articles in our index yet.