CVE-2026-59142

The Data::HashMap::Shared module for Perl (versions before 0.14 ) is vulnerable to an out-of-bounds read within the shm_str_copy function. The root cause is that the shm_validate_header validator fails to verify array contents, leading shm_str_copy to perform an unbounded memcpy using raw, unvali...

CVE-2026-59142

Data::HashMap::Shared versions before 0.14 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in shmstrcopy. The attach-time validator shmvalidateheader checks the header scalars and region layout against the file size, but does not validate the array contents it then...