CVE-2026-59140 Data::SortedSet::Shared versions before 0.03 for Perl allow an out-of-bounds read via unvalidated node indices in the rank and min/max query paths

Data::SortedSet::Shared versions before 0.03 for Perl allow an out-of-bounds read via unvalidated node indices in the rank and min/max query paths. The attach-time validator ssvalidateheader bounds only the root index against the node pool nodecapacity. The order-statistics and min/max queries th...

CVE-2026-59140

The Data::SortedSet::Shared Perl module (versions before 0.03 ) is vulnerable to an out-of-bounds read . The issue stems from the ss_validate_header validator only checking the root index against the node pool capacity, while the rank , min , and max query paths read children[], leftmost, and rig...