CVE-2026-54580 mport index decompression can leave partial or corrupt index data after zstd failures

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 mportdecompresszstd, and libmport/fetch.c did not consistently propagate those failures to index-fetch callers. A malicious or faulty mirror could supply...

PT-2026-95013

Name of the Vulnerable Software and Affected Versions mport versions prior to 2.7.8 Description The MidnightBSD Package Manager fails to treat all truncated, corrupt, or failed zstd streams as fatal within the mport decompress zstd function. Additionally, the libmport/fetch.c component does not...