Affected: CleanStart: wildfly

Security vulnerability affects the wildfly package. A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true.

A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality.

Affected: Ubuntu:Pro:16.04:LTS: resteasy, Ubuntu:Pro:18.04:LTS: resteasy3.0, Ubuntu:Pro:20.04:LTS: resteasy, Ubuntu:Pro:20.04:LTS: resteasy3.0, Ubuntu:22.04:LTS: resteasy3.0, Ubuntu:Pro:22.04:LTS: resteasy, Ubuntu:24.04:LTS: resteasy3.0, Ubuntu:Pro:24.04:LTS: resteasy, Ubuntu:26.04:LTS: resteasy, Ubuntu:26.04:LTS: resteasy3.0

A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality.