CVE-2026-54580High· 8.3▾ Twilightmport is the MidnightBSD Package Manager. Prior to 2.7.8, libmport/util.c did not make every truncated, corrupt, or failed zstd stream fatal in mport_decompress_zstd(), and libmport/fetch.c did not consistently propagate those failures t…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 45.7 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 19.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
mport is the MidnightBSD Package Manager. Prior to 2.7.8, libmport/util.c did not make every truncated, corrupt, or failed zstd stream fatal in mport_decompress_zstd(), and libmport/fetch.c did not consistently propagate those failures to index-fetch callers. A malicious or faulty mirror could supply compressed package index data that caused ZSTD_decompressStream() or an output write to fail while leaving partial index output available for later use, resulting in package-index integrity loss or denial of service. This issue is fixed in version 2.7.8.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-54581High· 8.3mport is the MidnightBSD Package Manager
CVE-2026-54578Low· 2.0mport is the MidnightBSD Package Manager
CVE-2026-54584Medium· 5.3mport is the MidnightBSD Package Manager
CVE-2026-54585Medium· 6.0mport is the MidnightBSD Package Manager
CVE-2026-54587Medium· 5.8mport is the MidnightBSD Package Manager
CVE-2026-54586Medium· 6.0mport is the MidnightBSD Package Manager