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    CVE-2026-54586

    mport is the MidnightBSD Package Manager. Prior to 2.7.8, the mport_fetch_index(), mport_fetch_bootstrap_index(), and mport_fetch_bundle() paths in libmport/fetch.c accepted non-HTTPS repository and package mirror URLs without a url_is_https() enforcement check. When a cleartext URL was configured or returned by mirror data, a network-positioned attacker could tamper with package index or package download traffic and compromise package selection or integrity. This issue is fixed in version 2.7.8.

    Published:Sep 17, 2026
    Last Modified:Sep 21, 2026
    EPS:Sep 17, 2026
    EPSS Score:0.00134
    CVSS Score:6

    Affected Products

    Vendor
    Midnightbsd
    Product
    Mport

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-102 Session Sidejacking
    CAPEC-111 JSON Hijacking (aka JavaScript Hijacking)
    CAPEC-117 Interception
    CAPEC-141 Cache Poisoning
    CAPEC-142 DNS Cache Poisoning
    CAPEC-148 Content Spoofing
    CAPEC-218 Spoofing of UDDI/ebXML Messages
    CAPEC-383 Harvesting Information via API Event Monitoring
    CAPEC-384 Application API Message Manipulation via Man-in-the-Middle
    CAPEC-385 Transaction or Event Tampering via Application API Manipulation
    CAPEC-386 Application API Navigation Remapping
    CAPEC-387 Navigation Remapping To Propagate Malicious Content
    CAPEC-388 Application API Button Hijacking
    CAPEC-477 Signature Spoofing by Mixing Signed and Unsigned Content
    CAPEC-65 Sniff Application Code
    CAPEC-665 Exploitation of Thunderbolt Protection Flaws
    CAPEC-701 Browser in the Middle (BiTM)

    Related CVEs

    CVE-2026-54584 (CVSS 5.3) — mport is the MidnightBSD Package Manager. mport before 2.7.8 used TMPDIR while extracting package metafiles, i…
    CVE-2026-54579 (CVSS 2.3) — mport is the MidnightBSD Package Manager. Prior to 2.7.8, ping() in libmport/ping.c accepted ICMP replies with…
    CVE-2026-54576 (CVSS 5.8) — mport is the MidnightBSD Package Manager. Prior to 2.7.8, do_actual_install() in libmport/bundle_read_install_…
    CVE-2026-54587 (CVSS 5.8) — mport is the MidnightBSD Package Manager. Prior to 2.7.8, directory assets handled as ASSET_DIR or ASSET_DIR_O…
    CVE-2026-54575 (CVSS 5.8) — mport is the MidnightBSD Package Manager. Prior to 2.7.8, privileged package fetch and cache-cleaning operatio…
    CVE-2026-54578 (CVSS 2) — mport is the MidnightBSD Package Manager. Prior to 2.7.8, mport_verify_package() in libmport/verify.c could co…
    CVE-2026-54585 (CVSS 6) — mport is the MidnightBSD Package Manager. Prior to 2.7.8, create_sample_file() in libmport/bundle_read_install…
    CVE-2026-54580 (CVSS 8.3) — mport is the MidnightBSD Package Manager. Prior to 2.7.8, libmport/util.c did not make every truncated, corrup…
    CVE-2026-54582 (CVSS 6) — mport is the MidnightBSD Package Manager. Prior to 2.7.8, package installation lacked a preflight check for in…
    CVE-2026-54577 (CVSS 2) — mport is the MidnightBSD Package Manager. Prior to 2.7.8, the audit command in mport/mport.c computed option-a…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High