CVE-2026-54578 Details
Description
mport is the MidnightBSD Package Manager. Prior to 2.7.8, mport_verify_package() in libmport/verify.c could continue after MD5File() or SHA256_File() failed and compare an expected checksum with stale data in the hash buffer rather than a newly computed digest. An attacker able to influence an installed file or the conditions that make hashing fail could receive a misleading integrity result or hide a checksum failure. This issue is fixed in version 2.7.8.
A vulnerability exists in the MidnightBSD package manager, mport, prior to version 2.7.8. The issue arises in the package verification process, where the function mport_verify_package() could improperly continue after a hashing failure. This could lead to comparing expected checksums with outdated data instead of a freshly calculated digest. An attacker who can manipulate an installed file or the conditions that cause hashing to fail might exploit this to receive a false integrity assessment or obscure a checksum failure.
Users can upgrade to MidnightBSD mport version 2.7.8 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 17, 2026CISA-ADP
Assessed Sep 18, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/MidnightBSD/mport/commit/cd9991c3cc1f60ecb3f378852ad8b5caa820e990 | [email protected] | Source CodeVendor |
| https://github.com/MidnightBSD/mport/pull/138 | [email protected] | Source CodeVendor |
| https://github.com/MidnightBSD/mport/releases/tag/2.7.8 | [email protected] | Release NotesVendor |
| https://github.com/MidnightBSD/mport/security/advisories/GHSA-hgmr-9p75-q5cg | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-354 | Improper Validation of Integrity Check Value | [email protected] |
| CWE-755 | Improper Handling of Exceptional Conditions | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| MidnightBSD mport | < 2.7.8 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 18, 2026 | CVE Modified | CISA-ADP |
| Sep 17, 2026 | New CVE Received | [email protected] |