#posix
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Why POSIX wordexp(3) Is Dangerous on Untrusted Input
POSIX's wordexp(3), often recommended for tilde expansion, performs command substitution by default — and the WRDE_NOCMD flag doesn't always save you.
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FreeBSD 14.5: an update to the 14.x branch with tweaks to userland utilities
The FreeBSD project has released version 14.5 — a set of fixes and a handful of changes to userland utilities that bring the system closer to the requirements of POSIX.1-2024.