MidnightBSD mport up to 2.7.7 Fetch libmport/fetch.c missing encryption

Summaryinfo

A vulnerability classified as problematic was found in MidnightBSD mport up to 2.7.7. Affected by this issue is the function mport_fetch_index/mport_fetch_bootstrap_index/mport_fetch_bundle of the file libmport/fetch.c of the component Fetch. Such manipulation leads to missing encryption. This vulnerability is documented as CVE-2026-54586. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in MidnightBSD mport up to 2.7.7 and classified as problematic. Affected by this issue is the function mport_fetch_index/mport_fetch_bootstrap_index/mport_fetch_bundle of the file libmport/fetch.c of the component Fetch. The manipulation with an unknown input leads to a missing encryption vulnerability. Using CWE to declare the problem leads to CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. Impacted is confidentiality. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-54586 since 06/15/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1600.

Upgrading to version 2.7.8 eliminates this vulnerability.

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Productinfo

Vendor

• MidnightBSD

Name

• mport

Version

• 2.7.0
• 2.7.1
• 2.7.2
• 2.7.3
• 2.7.4
• 2.7.5
• 2.7.6
• 2.7.7

Website

• Product: https://github.com/MidnightBSD/mport/

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