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CVE-2026-54582 - mport package installation can overwrite existing unmanaged or differently owned files

CVE ID :CVE-2026-54582
Published : Sept. 17, 2026, 4:50 p.m. | 18 minutes ago
Description :mport is the MidnightBSD Package Manager. Prior to 2.7.8, package installation lacked a preflight check for incoming non-directory assets that already existed on disk. The affected logic across libmport/check_preconditions.c, libmport/install_primative.c, and libmport/mport_private.h did not apply MPORT_PRECHECK_FILE_CONFLICTS, so a crafted or conflicting package could overwrite a file owned by another package or unmanaged by mport. The check is bypassed only when the operator explicitly enables mport->force. Privileged installation without that override could compromise local filesystem integrity and package database consistency. This issue is fixed in version 2.7.8.
Severity: 0.0 | NA
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