CVE-2026-54575
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
Summary
mport is the MidnightBSD Package Manager. Prior to 2.7.8, privileged package fetch and cache-cleaning operations used race-prone path handling across libmport/fetch.c, libmport/clean.c, libmport/util.c, libmport/bundle_read_install_pkg.c, libmport/delete_primative.c, and libexec/mport.create/mport.create.c. A local attacker with write access to a participating package cache or staging path could race path checks and replacement operations to redirect package downloads, cleanup, or install-related side effects outside the intended cache. The affected lifecycle helper paths also used shell-form invocation, increasing command-line interpretation risk during privileged helper execution. This issue is fixed in version 2.7.8.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MidnightBSD | mport | < 2.7.8 | affected |
Weaknesses
- CWE-78: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
- CWE-367: CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
References
- https://github.com/MidnightBSD/mport/security/advisories/GHSA-h387-g4pf-28cj
- https://github.com/MidnightBSD/mport/pull/118
- https://github.com/MidnightBSD/mport/commit/29154b0fdfb5806568ed1277e88d942bad6d1169
- https://github.com/MidnightBSD/mport/releases/tag/2.7.8
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