CVE-2026-9334

A flaw was found in perl-Cpanel-JSON-XS. This vulnerability allows a remote attacker to cause a denial of service DoS by providing specially crafted JSON input with duplicate object keys. When the dupkeysasarrayref option is enabled, the decodehv function incorrectly processes the input, leading ...

CVE-2026-9334: Access of Resource Using Incompatible Type

Cpanel::JSON::XS versions before 4.41 for Perl allow type confusion via duplicate object keys when dupkeysasarrayref is enabled. decodehv collapses duplicate object keys into an array reference under dupkeysasarrayref. The branch reached for a duplicate key tests SvTYPE oldvalue != SVtRV && SvTYP...