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CVE-2026-27709

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
M2Team / NanaZipaffected >= 5.0.1252.0, < 6.0.1638.0; affected >= 6.1, < 6.5.1638.0

CWE

CWE-125

References

ADP enrichment

CISA-ADP

No English description supplied.