CVE-2026-54587: fallo de gravedad media en MidnightBSD mport
mport directory asset installation is vulnerable to symlink and path traversal races
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.8epss 0.1%
mport is the MidnightBSD Package Manager. Prior to 2.7.8, directory assets handled as ASSET_DIR or ASSET_DIR_OWNER_MODE in libmport/bundle_read_install_pkg.c used path-based mport_mkdirp(), ownership, and permission operations. A local attacker able to modify part of the target installation tree could use dot-dot traversal or substitute symlinks during privileged package installation, causing directory creation or attribute changes to affect attacker-selected paths outside the intended package directories. This issue is fixed in version 2.7.8.
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Productos afectados
MidnightBSD · mportCVEs relacionadas — MidnightBSD mport
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CVE-2026-54582MEDIUMmport package installation can overwrite existing unmanaged or differently owned filesEPSS 0.6%CVE-2026-54585MEDIUMmport sample file handling can write outside the configured rootEPSS 0.5%CVE-2026-54583HIGHmport package bundle downloads allow unsafe destination filenamesEPSS 0.5%CVE-2026-54584MEDIUMmport trusts environment-controlled temporary directories in privileged metadata extractionEPSS 0.5%CVE-2026-54580HIGHmport index decompression can leave partial or corrupt index data after zstd failuresEPSS 0.3%CVE-2026-54581HIGHmport bootstrap index fetch can continue after hash verification failureEPSS 0.2%