CVE-2026-54585CWE-22path-traversal

CVE-2026-54585

published September 17, 2026

CVSS
6.0
EPSS
1%
Percentile
44.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
6.0 · NONE
CVSS v4.0
6.0 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
EPSS
0.00544 · 44.9th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-09-17T21:16Z
References (4)
https://github.com/MidnightBSD/mport/commit/36a42c8ddbd23ee9eb72c4c17596eb92cb423cf0 · [email protected]https://github.com/MidnightBSD/mport/pull/122 · [email protected]https://github.com/MidnightBSD/mport/releases/tag/2.7.8 · [email protected]https://github.com/MidnightBSD/mport/security/advisories/GHSA-xqjc-rxmm-p27v · [email protected]
EPSS history
Timeline
  • 19 SEP 03:53Z
    EPSS moved — → 1%
    epss
  • 17 SEP 16:52Z
    mport sample file handling can write outside the configured root
    cvelistv5