CVE-2026-120634

Versions of CGI::Carp prior to 5.00 for Perl are vulnerable to an information disclosure flaw in persistent server environments. The root cause is a package-level buffer used by warningsToBrowser that is never cleared between requests. When running under mod_perl , FastCGI , or PSGI , warnings fr...

CVE-2026-120634 CGI::Carp versions before 5.00 for Perl leak warnings across requests in persistent environments via the warningsToBrowser buffer

CGI::Carp versions before 5.00 for Perl leak warnings across requests in persistent environments via the warningsToBrowser buffer. Warnings are held in a package-level buffer until warningsToBrowser writes them into the page as HTML comments, and the buffer is never cleared between requests. Unde...