EUVD-2026-46375

Data::SortedSet::Shared versions before 0.03 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in sortedset.h with openpath, ORDWR|OCREAT, 0666. The mode is 0666, so under the default umask 022 the file is created mode 0644...

CVE-2026-64617

Data::PubSub::Shared before 0.07 (Perl) creates a world-readable mmap backing file via open(path, O_RDWR|O_CREAT, 0666) with mode 0644 after umask. Lack of O_NOFOLLOW and O_EXCL enables a local attacker to follow a symlink or race, potentially reading IPC payloads stored in the shared segment. Th...

CVE-2026-64613

Data::Buffer::Shared for Perl versions before 0.05 is affected. A world-readable mmap backing file is created (mode 0666 then 0644 by default umask) and opened with open(path, O_RDWR|O_CREAT|O_EXCL) without O_NOFOLLOW. A pre-planted symlink at the path can be followed, allowing local users to rea...

PT-2026-62064

Name of the Vulnerable Software and Affected Versions Data::RoaringBitmap::Shared versions prior to 0.02 Description This issue occurs when creating a world-readable mmap backing file and opening it without the O EXCL or O NOFOLLOW flags. The segment is created using the open function with a mode...