CVE-2026-54290 — Hono: CORS Middleware reflects any Origin with credentials when `origin` defaults to the wildcard
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, with credentials: true and no explicit origin (the default wildcard), the…
Published: 2026-06-22 · CVSS: 7.1 · CVSS 3.1
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, with credentials: true and no explicit origin (the default wildcard), the CORS Middleware reflects the request's Origin and sends Access-Control-Allow-Credentials: true. Any site can then make credentialed cross-origin requests and read the responses, exposing cookie-authenticated endpoints to arbitrary origins. This vulnerability is fixed in 4.12.25.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7