CVE-2026-54584
mport trusts environment-controlled temporary directories in privileged metadata extraction
Description
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.
No summary for this CVE yet.
Weaknesses
Affected Products
MidnightBSD
oss-project
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
References
https://github.com/MidnightBSD/mport/commit/3790fa49a36cb085f48b204ef189fb82bbee621a
github.com
https://github.com/MidnightBSD/mport/pull/123
github.com
https://github.com/MidnightBSD/mport/releases/tag/2.7.8
github.com
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