CVE-2026-27709

Published February 26th, 2026

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CVSS v3

6.6

MEDIUM

CVSS v2

N/A

Affected

PROJECT

Description

NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0, NanaZip’s `.NET Single File Application` parser has an out-of-bounds read vulnerability in manifest parsing. A crafted bundle can provide a malformed `RelativePathLength` so the parser constructs a `std::string` from memory beyond `HeaderBuffer`, leading to crash and potential in-process memory disclosure. Versions 6.0.1638.0 and 6.5.1638.0 fix the issue.

M2Team/NanaZip

The 7-Zip derivative intended for the modern Windows experience

GitHub

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