CVE-2026-9516 Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws

Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws. To skip a leading 3-byte UTF-8 BOM, decodejson advances the input scalar's string pointer past the mark with SvPVset and restores it only on the normal return...

CVE-2026-9516 Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws

Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws. To skip a leading 3-byte UTF-8 BOM, decodejson advances the input scalar's string pointer past the mark with SvPVset and restores it only on the normal return...

CVE-2026-9516

Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws. To skip a leading 3-byte UTF-8 BOM, decodejson advances the input scalar's string pointer past the mark with SvPVset and restores it only on the normal return...

CVE-2026-9516

Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws. To skip a leading 3-byte UTF-8 BOM, decodejson advances the input scalar's string pointer past the mark with SvPVset and restores it only on the normal return...

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...

EUVD-2026-34060

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 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 && SvTY...

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...

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

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...

CVE-2026-9516: Release of Invalid Pointer or Reference

Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws. To skip a leading 3-byte UTF-8 BOM, decodejson advances the input scalar's string pointer past the mark with SvPVset and restores it only on the normal return...

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...

OPENSUSE-SU-2026:10950-1 perl-Cpanel-JSON-XS-4.410.0-1.1 on GA media

These are all security issues fixed in the perl-Cpanel-JSON-XS-4.410.0-1.1 package on the GA media of openSUSE Tumbleweed...

Cpanel::JSON::XS security vulnerability

Cpanel::JSON::XS is a tool developed by RURBAN personal developers that converts Perl data structures into JSON format. Versions of Cpanel::JSON::XS prior to version 4.41 contained security vulnerabilities. These vulnerabilities stemmed from exceptions thrown during the decoding filter callback,...

PT-2026-45892

Name of the Vulnerable Software and Affected Versions Cpanel::JSON::XS versions prior to 4.41 Description An issue exists where providing input prefixed with a UTF-8 Byte Order Mark BOM can lead to a denial of service. When the decode json function processes a 3-byte UTF-8 BOM, it advances the...

Linux Distros Unpatched Vulnerability : CVE-2026-9334

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Cpanel::JSON::XS versions before 4.41 for Perl allow type confusion via duplicate object keys when dupkeysasarrayref is enabled. decodehv collapses duplicate...

Linux Distros Unpatched Vulnerability : CVE-2026-9516

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws. To skip a leading 3-by...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: perl-JSON-XS (UTSA-2026-006133)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006133 advisory. JSON::XS before version 4.04 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other...