CVE-2026-54578CWE-354CWE-755

CVE-2026-54578

published September 17, 2026

CVSS
2.0
EPSS
0%
Percentile
1.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
2.0 · NONE
CVSS v4.0
2.0 · CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00113 · 1.3th percentile
Weaknesses
CWE-354 · Improper Validation of Integrity Check Value; CWE-755 · Improper Handling of Exceptional Conditions
Published
2026-09-17T21:16Z
References (4)
https://github.com/MidnightBSD/mport/commit/cd9991c3cc1f60ecb3f378852ad8b5caa820e990 · [email protected]https://github.com/MidnightBSD/mport/pull/138 · [email protected]https://github.com/MidnightBSD/mport/releases/tag/2.7.8 · [email protected]https://github.com/MidnightBSD/mport/security/advisories/GHSA-hgmr-9p75-q5cg · [email protected]
EPSS history
Timeline
  • 19 SEP 03:53Z
    EPSS moved — → 0%
    epss
  • 17 SEP 16:54Z
    mport verify can compare stale checksum data after hashing failures
    cvelistv5