---
id: CVE-2026-54578
title: mport is the MidnightBSD Package Manager
summary: >-
  mport is the MidnightBSD Package Manager. Prior to 2.7.8,
  mport_verify_package() in libmport/verify.c could continue after MD5File() or
  SHA256_File() failed and compare an expected checksum with stale data in the
  hash buffer rather than …
severity: low
cvss: 2
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-354
  - CWE-755
vendor: MidnightBSD
product: mport
affected:
  - mport < 2.7.8
published: '2026-09-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T15:17:09.320'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54578'
references:
  - url: >-
      https://github.com/MidnightBSD/mport/commit/cd9991c3cc1f60ecb3f378852ad8b5caa820e990
    label: security-advisories@github.com
  - url: 'https://github.com/MidnightBSD/mport/pull/138'
    label: security-advisories@github.com
  - url: 'https://github.com/MidnightBSD/mport/releases/tag/2.7.8'
    label: security-advisories@github.com
  - url: >-
      https://github.com/MidnightBSD/mport/security/advisories/GHSA-hgmr-9p75-q5cg
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-18T14:36:37.692551Z'
cvssSource: cna
epss: 0.00108
epssPercentile: 0.01342
ingestedAt: '2026-09-17T17:23:30.627Z'
---

## Overview

mport is the MidnightBSD Package Manager. Prior to 2.7.8, mport_verify_package() in libmport/verify.c could continue after MD5File() or SHA256_File() failed and compare an expected checksum with stale data in the hash buffer rather than a newly computed digest. An attacker able to influence an installed file or the conditions that make hashing fail could receive a misleading integrity result or hide a checksum failure. This issue is fixed in version 2.7.8.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.