medium5.8
CVE-2026-54576
mport is the MidnightBSD Package Manager.
Impact
mport is the MidnightBSD Package Manager. Prior to 2.7.8, do_actual_install() in libmport/bundle_read_install_pkg.c used path-based lstat(), chown(), stat(), and chmod() operations while installing package files. A local attacker with write access to a target directory could replace a checked file with a symlink before privileged ownership or mode changes were applied, redirecting those changes to an attacker-selected path and compromising filesystem integrity or permissions. This issue is fixed in version 2.7.8.
Affected products
| Product | Affected versions |
|---|---|
| Mport Is The MidnightBSD Package Manager. | before 2.7.8 |
Versions were read from the advisory text. No structured product data has been published for this record yet.