CVE-2026-27709

MEDIUM

6.6

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.

CVE Details

CVSS v3.1 Score6.6

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published2/26/2026

Last Modified2/27/2026

Sourcenvd

Honeypot Sightings0

Affected Products

m2team:nanazip

Weaknesses (CWE)

CWE-125

References

https://github.com/M2Team/NanaZip/security/advisories/GHSA-vr4w-xc78-w6fv(security-advisories@github.com)

https://github.com/M2Team/NanaZip/security/advisories/GHSA-vr4w-xc78-w6fv(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.