Categories
CVE-2026-27709

NanaZip .NET Single-File Manifest Parser Vulnerable to Out-of-Bounds Read via Unchecked RelativePathLength

Summary

NanaZip .NET Single-File Manifest Parser Vulnerable to Out-of-Bounds Read via Unchecked RelativePathLength

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

References

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