CVE-2026-54587

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

No CVSS.

References

Link	Resource
https://github.com/MidnightBSD/mport/commit/a4fa996df1fbebeff3691e1b512c807b5f414b5d
https://github.com/MidnightBSD/mport/pull/119
https://github.com/MidnightBSD/mport/releases/tag/2.7.8
https://github.com/MidnightBSD/mport/security/advisories/GHSA-f69w-h3gh-r86p

Configurations

No configuration.

History

17 Sep 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:16

Updated : 2026-09-17 21:15

NVD link : CVE-2026-54587

Mitre link : CVE-2026-54587

CVE.ORG link : CVE-2026-54587

JSON object : View

Products Affected

No product.

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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