EUVD-2026-46377

Data::HashMap::Shared versions before 0.14 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in shmgeneric.h with openpath, ORDWR | OCREAT | OCLOEXEC, 0666. The mode is 0666, so under the default umask 022 the file is created mode 06...

CVE-2026-65064 Data::HashMap::Shared versions before 0.14 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW

Data::HashMap::Shared versions before 0.14 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in shmgeneric.h with openpath, ORDWR | OCREAT | OCLOEXEC, 0666. The mode is 0666, so under the default umask 022 the file is created mode 06...

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...

PT-2026-62045

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

PT-2026-62063

Name of the Vulnerable Software and Affected Versions Data::HashMap::Shared versions prior to 0.14 Description This issue occurs when the software creates a world-readable mmap backing file and opens it without using the O EXCL or O NOFOLLOW flags. The segment is created in shm generic.h using th...