EUVD-2026-46381
GHSA-fm8j-jqfj-cvjh
Lifecycle Timeline
2DescriptionCVE.org
Data::SpatialHash::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW.
The segment is created in sphash.h with open(path, O_RDWR|O_CREAT, 0666). The mode is 0666, so under the default umask 022 the file is created mode 0644 (world-readable). O_NOFOLLOW is absent, so a symlink planted at the path is followed, and O_EXCL is absent, so the open silently uses a pre-planted file instead of failing.
A "Shared" segment naturally lives in a shared directory such as /tmp or /dev/shm, where any local user can read the IPC payloads stored in the world-readable segment, and a pre-planted file or symlink at the path lets a local attacker win a pre-creation race or redirect the open.
Analysis
Data::SpatialHash::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW. The segment is created in sphash.h with open(path, O_RDWR|O_CREAT, 0666). …
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Multiple cross-site scripting (XSS) vulnerabilities in the Data module 6.x-1.x before 6.x-1.0 and 7.x-1.x before 7.x-1.0
Data::DisjointSet::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_
Data::Intern::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL
Data::RingBuffer::Shared versions before 0.04 for Perl create a world-readable mmap backing file and open it without O_E
Data::RoaringBitmap::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without
Data::HashMap::Shared versions before 0.14 for Perl create a world-readable mmap backing file and open it without O_EXCL
Data::RadixTree::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EX
Data::SortedSet::Shared versions before 0.03 for Perl create a world-readable mmap backing file and open it without O_EX
Data::ReqRep::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_EXCL
Data::PubSub::Shared versions before 0.07 for Perl create a world-readable mmap backing file and open it without O_EXCL
Data::NDArray::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL
Data::Graph::Shared versions before 0.04 for Perl create a world-readable mmap backing file and open it without O_EXCL o
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External POC / Exploit Code
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