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MEDIUM

mport package fetch and clean paths are vulnerable to TOCTOU filesystem races

Published Sep 17, 2026

Description

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 products

Remediation

No remediation recorded yet.

Metrics

References (4)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner GitHub_M
Published Sep 17, 2026
Updated Sep 21, 2026
Reserved Jun 15, 2026
CISA Vulnrichment
Updated Sep 21, 2026
NVD
Status Deferred
Modified Sep 17, 2026
Red Hat
Severity n/a
Public date n/a