CVE-2026-54584
mport trusts environment-controlled temporary directories in privileged metadata extraction
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
mport is the MidnightBSD Package Manager. mport before 2.7.8 used TMPDIR while extracting package metafiles, including when running as root or in setuid/setgid contexts. An attacker able to control the environment for a privileged mport invocation could redirect temporary metadata extraction to an attacker-controlled location. PR 123 ignores unsafe TMPDIR values in privileged contexts and rejects empty TMPDIR. This issue has been patched in version 2.7.8.
| CWE | CWE-73 CWE-377 |
| Vendor | midnightbsd |
| Product | mport |
| Published | Sep 21, 2026 |
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Affected Versions
MidnightBSD / mport
< 2.7.8
References
github.com: https://github.com/MidnightBSD/mport/security/advisories/GHSA-4vv3-3h8r-q6mq github.com: https://github.com/MidnightBSD/mport/pull/123 github.com: https://github.com/MidnightBSD/mport/commit/3790fa49a36cb085f48b204ef189fb82bbee621a github.com: https://github.com/MidnightBSD/mport/releases/tag/2.7.8