PT-2026-117572

Name of the Vulnerable Software and Affected Versions Cpanel::JSON::XS versions 4.33 through 4.79 Description An issue exists where duplicate non-ASCII bare keys are not properly handled, leading to type confusion within the decode hv function when dupkeys as arrayref is used. When allow barekey ...

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

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...

CVE-2026-9334 Cpanel::JSON::XS versions before 4.41 for Perl allow type confusion via duplicate object keys when dupkeys_as_arrayref is enabled

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...

CVE-2026-9334

The Cpanel::JSON::XS Perl module (versions before 4.41 ) contains a type confusion vulnerability during JSON decoding. When the dupkeys_as_arrayref option is enabled, the decode_hv() function incorrectly evaluates SvRV(old_value) before confirming if the value is a reference. If the existing valu...

CVE-2026-9334 Cpanel::JSON::XS versions before 4.41 for Perl allow type confusion via duplicate object keys when dupkeys_as_arrayref is enabled

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...

Cpanel::JSON::XS security vulnerability

Cpanel::JSON::XS is a tool developed by RURBAN for converting Perl data structures into JSON format. Versions of Cpanel::JSON::XS prior to version 4.41 contained security vulnerabilities. These vulnerabilities stemmed from the use of dupkeysasarrayref, which led to type confusion when repeated...