CVE-2026-54578
mport verify can compare stale checksum data after hashing failures
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.
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/cd9991c3cc1f60ecb3f378852ad8b5caa820e990
github.com
https://github.com/MidnightBSD/mport/pull/138
github.com
https://github.com/MidnightBSD/mport/releases/tag/2.7.8
github.com
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