CVE-2026-26747

A Host Header Poisoning vulnerability exists in Monica 4.1.2 due to improper handling of the HTTP Host header in app/Providers/AppServiceProvider.php, combined with the default misconfiguration where the "app.forceurl" is not set and default is "false". The application generates absolute URLs suc...

CVE-2026-26747

Monica 4.1.2 is affected by a Host Header Poisoning issue caused by improper handling of the HTTP Host header in app/Providers/AppServiceProvider.php, compounded by the default app.force_url being unset/false. The app constructs absolute URLs (e.g., password reset links) using the user-supplied H...