CVE-2026-54585

Summary

mport is the MidnightBSD Package Manager. Prior to 2.7.8, create_sample_file() in libmport/bundle_read_install_pkg.c did not constrain absolute source and destination paths from the sample-file manifest directive to mport->root. A malicious or malformed package manifest could therefore direct privileged sample-file handling to copy or write outside the configured installation root, compromising local filesystem integrity. This issue is fixed in version 2.7.8.

Affected Software

Weaknesses

• CWE-22: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/MidnightBSD/mport/security/advisories/GHSA-xqjc-rxmm-p27v
• https://github.com/MidnightBSD/mport/pull/122
• https://github.com/MidnightBSD/mport/commit/36a42c8ddbd23ee9eb72c4c17596eb92cb423cf0
• https://github.com/MidnightBSD/mport/releases/tag/2.7.8

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