CVE-2026-65065

Data::RoaringBitmap::Shared versions prior to 0.02 for Perl are vulnerable because they create a world-readable mmap backing file using open(path, O_RDWR|O_CREAT, 0666) without the O_EXCL or O_NOFOLLOW flags. Due to the default umask of 022, the resulting file mode is 0644, allowing any local use...

CVE-2026-64613

Data::Buffer::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without ONOFOLLOW. The segment is created in bufgeneric.h with openpath, ORDWR|OCREAT|OEXCL, 0666. OEXCL blocks a pre-seeded file on create, but the mode is 0666, so under the default umask 02...