CVE-2026-54580

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/MidnightBSD/mport/commit/b3e11ba078351402082a881209ee6fda5d332e3d
https://github.com/MidnightBSD/mport/pull/135
https://github.com/MidnightBSD/mport/releases/tag/2.7.8
https://github.com/MidnightBSD/mport/security/advisories/GHSA-ffqj-j42r-747w

Configurations

No configuration.

History

17 Sep 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:16

Updated : 2026-09-24 21:17

NVD link : CVE-2026-54580

Mitre link : CVE-2026-54580

CVE.ORG link : CVE-2026-54580

JSON object : View

Products Affected

No product.

CWE

CWE-354

Improper Validation of Integrity Check Value

CWE-755

Improper Handling of Exceptional Conditions

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