CVE-2026-55780

NanaZip (7‑Zip derivative) prior to version 6.5.1749.0 is vulnerable due to its .NET single-file bundle handler in NanaZip.Codecs.Archive.DotNetSingleFile.cpp, which sizes the extraction buffer from the bundle entry Size field without validating against the real file size. This allows an attacker...

PT-2026-57235

NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's .NET single-file bundle handler in NanaZip.Codecs.Archive.DotNetSingleFile.cpp sizes its extraction buffer from the bundle entry Size field, which is only checked for sign and is not validat...