CVE-2026-54584 (GCVE-0-2026-54584)

Vulnerability from cvelistv5 – Published: 2026-09-21 14:05 – Updated: 2026-09-25 19:23
VLAI
Title
mport trusts environment-controlled temporary directories in privileged metadata extraction
Summary
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.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 19:23 UTC
CWE
  • CWE-73 - External Control of File Name or Path
  • CWE-377 - Insecure Temporary File
Assigner
References
Impacted products
Vendor Product Version
MidnightBSD mport Affected: < 2.7.8
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Show details on NVD website
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