CVE-2026-65069

Data::DisjointSet::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in dsu.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-2026-64616

Data::NDArray::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in ndarray.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-2026-64617

Data::PubSub::Shared versions before 0.07 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in pubsub.h with openpath, ORDWR|OCREAT, 0666. The mode is 0666, so under the default umask 022 the file is created mode 0644 world-readable...

CVE-2026-64615

Data::Graph::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 graph.h with openpath, ORDWR|OCREAT, 0666. The mode is 0666, so under the default umask 022 the file is created mode 0644 world-readable...

CVE-2026-64614

Data::Deque::Shared versions before 0.06 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in deque.h with openpath, ORDWR|OCREAT, 0666. The mode is 0666, so under the default umask 022 the file is created mode 0644 world-readable...

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...

CVE-2026-65069

The CVE-2026-65069 issue affects Data::DisjointSet::Shared (

CVE-2026-65068

CVE-2026-65068 affects Data::SpatialHash::Shared prior to 0.02 for Perl. The code opens a shared mmap backing file with open(path, O_RDWR|O_CREAT, 0666) and creates the file with mode 0666 (often 0644 under default umask) in a world‑readable location (e.g., /tmp or /dev/shm). Because O_NOFOLLOW i...

CVE-2026-65067

CVE-2026-65067 affects Data::Intern::Shared prior to 0.02 for Perl. The code creates a world-readable mmap backing file via open(path, O_RDWR|O_CREAT, 0666) with mode 0666, which becomes 0644 under the default umask. Absence of O_NOFOLLOW means a symlink at the path is followed, and absence of O_...

CVE-2026-65066 Data::RingBuffer::Shared versions before 0.04 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW

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-2026-65065

Summary: CVE-2026-65065 affects Data::RoaringBitmap::Shared before 0.02 for Perl. The code creates a shared mmap backing file via open(path, O_RDWR|O_CREAT, 0666) with mode 0666, yielding a world-readable 0644 file after umask. Absence of O_NOFOLLOW allows following a symlink, and absence of O_EX...

CVE-2026-65065 Data::RoaringBitmap::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW

Data::RoaringBitmap::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in roaring.h with openpath, ORDWR|OCREAT, 0666. The mode is 0666, so under the default umask 022 the file is created mode 0644...

CVE-2026-65062

CVE-2026-65062 (Data::SortedSet::Shared) affects Perl versions before 0.03. Affected code creates an mmap-backed segment with world-readable permissions by opening a path with open(path, O_RDWR|O_CREAT, 0666) and a mode of 0666. With the default umask, this yields 0644, making the backing file wo...

CVE-2026-64617 Data::PubSub::Shared versions before 0.07 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW

Data::PubSub::Shared versions before 0.07 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in pubsub.h with openpath, ORDWR|OCREAT, 0666. The mode is 0666, so under the default umask 022 the file is created mode 0644 world-readable...

CVE-2026-64615

CVE-2026-64615 affects Data::Graph::Shared for Perl, specifically versions before 0.04. The implementation creates a world-readable mmap backing file by opening path with O_RDWR|O_CREAT and mode 0666 (leading to 0644 under default umask), without O_NOFOLLOW or O_EXCL checks. This enables local us...

CVE-2026-64614 Data::Deque::Shared versions before 0.06 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW

Data::Deque::Shared versions before 0.06 for Perl create a world-readable mmap backing file and open it without OEXCL or ONOFOLLOW. The segment is created in deque.h with openpath, ORDWR|OCREAT, 0666. The mode is 0666, so under the default umask 022 the file is created mode 0644 world-readable...

CVE-2026-64613

Data::Buffer::Shared for Perl versions before 0.05 is affected. A world-readable mmap backing file is created (mode 0666 then 0644 by default umask) and opened with open(path, O_RDWR|O_CREAT|O_EXCL) without O_NOFOLLOW. A pre-planted symlink at the path can be followed, allowing local users to rea...

CVE-2026-64613 Data::Buffer::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_NOFOLLOW

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...

acl: Symlink traversal privilege escalation via libacl functions

A flaw was found in the acl package, specifically within its libacl pathname-based functions. A local attacker could exploit this vulnerability by using a symbolic link to replace a pathname component. This could allow the attacker to redirect access control list ACL read or write operations to...

Important: Red Hat Security Advisory: acl security update

An update for acl is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...