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-2026-64614

CVE-2026-64614 affects Data::Deque::Shared for Perl versions before 0.06. The issue arises when a shared segment is created with open(path, O_RDWR|O_CREAT, 0666); the mode 0666 (subject to umask 022 -> 0644) makes the backing file world-readable. Because O_NOFOLLOW is absent and O_EXCL is also...

PT-2026-62066

Name of the Vulnerable Software and Affected Versions Data::Intern::Shared versions prior to 0.02 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 using the open function wi...

PT-2026-62068

Name of the Vulnerable Software and Affected Versions Data::DisjointSet::Shared versions prior to 0.02 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 dsu.h using the op...

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...

CVE-2026-48982 pam_usb: Missing O_EXCL on pad temp file creation allows concurrent update race

pamusb provides hardware authentication for Linux using ordinary removable media. In versions prior to 0.9.2, when updating a one-time pad file, a temporary file is created using open without the OEXCL flag. Without OEXCL, the create operation is not atomic: two concurrent processes racing to...

UBUNTU-CVE-2025-0913

os.OpenFilepath, os.OCREATE|OEXCL behaved differently on Unix and Windows systems when the target path was a dangling symlink. On Unix systems, OpenFile with OCREATE and OEXCL flags never follows symlinks. On Windows, when the target path was a symlink to a nonexistent location, OpenFile would...

SUSE CVE-2025-0913

os.OpenFilepath, os.OCREATE|OEXCL behaved differently on Unix and Windows systems when the target path was a dangling symlink. On Unix systems, OpenFile with OCREATE and OEXCL flags never follows symlinks. On Windows, when the target path was a symlink to a nonexistent location, OpenFile would...

SUSE CVE-2006-6304

The docoredump function in fs/exec.c in the Linux kernel 2.6.19 sets the flag variable to OEXCL but does not use it, which allows context-dependent attackers to modify arbitrary files via a rewrite attack during a core dump...