EUVD-2026-46379

Data::RingBuffer::Shared versions before 0.04 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in ring.h with openpath, ORDWR|OCREAT, 0666. The mode is 0666, so under the default umask 022 the file is created mode 0644 world-readabl...

CVE-2026-59144

The Data::RingBuffer::Shared Perl module in versions before 0.04 is vulnerable to a stack buffer overflow within the ring_read_seq function. The root cause is an unvalidated elem_size value read from an mmap'd segment; while the ring_validate_header validator checks for capacity and total size co...