CVE-2026-54584 (GCVE-0-2026-54584)
Vulnerability from cvelistv5
Published
2026-09-21 14:05
Modified
2026-09-25 19:23
CWE
  • CWE-73 - External Control of File Name or Path
  • CWE-377 - Insecure Temporary File
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.
Impacted products
Vendor Product Version
MidnightBSD mport Version: < 2.7.8
Create a notification for this product.
Show details on NVD website


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                "id": "CVE-2026-54584",
                "options": [
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-25T19:23:03.329673Z",
                "version": "2.0.3"
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            "baseScore": 5.3,
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            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "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",
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      "references": [
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          "name": "https://github.com/MidnightBSD/mport/security/advisories/GHSA-4vv3-3h8r-q6mq",
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        "discovery": "UNKNOWN"
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      "title": "mport trusts environment-controlled temporary directories in privileged metadata extraction"
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    "dateReserved": "2026-06-15T19:15:27.344Z",
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    "state": "PUBLISHED"
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