CVE-2026-27710

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-27710
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, a denial-of-service vulnerability exists in NanaZip’s `.NET Single File Application` parser. A crafted bundle can force an integer underflow in header-size calculation and trigger an unbounded memory allocation attempt during archive open. Versions 6.0.1638.0 and 6.5.1638.0 fix the issue.

5.0 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.3 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/M2Team/NanaZip/security/advisories/GHSA-89qw-8p49-32wf Exploit Vendor Advisory
https://github.com/M2Team/NanaZip/security/advisories/GHSA-89qw-8p49-32wf Exploit Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:m2team:nanazip:*:*:*:*:*:*:*:*
History

27 Feb 2026, 17:53

Type Values Removed Values Added
CPE cpe:2.3:a:m2team:nanazip:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.0
First Time M2team
M2team nanazip
References () https://github.com/M2Team/NanaZip/security/advisories/GHSA-89qw-8p49-32wf - () https://github.com/M2Team/NanaZip/security/advisories/GHSA-89qw-8p49-32wf - Exploit, Vendor Advisory

27 Feb 2026, 14:06

Type Values Removed Values Added
Summary
  • (es) NanaZip es un archivador de archivos de código abierto. A partir de la versión 5.0.1252.0 y anterior a las versiones 6.0.1638.0 y 6.5.1638.0, existe una vulnerabilidad de denegación de servicio en el analizador de 'aplicación de archivo único .NET' de NanaZip. Un paquete manipulado puede forzar un desbordamiento negativo de enteros en el cálculo del tamaño de la cabecera y desencadenar un intento de asignación de memoria ilimitada durante la apertura del archivo. Las versiones 6.0.1638.0 y 6.5.1638.0 corrigen el problema.

26 Feb 2026, 16:24

Type Values Removed Values Added
References () https://github.com/M2Team/NanaZip/security/advisories/GHSA-89qw-8p49-32wf - () https://github.com/M2Team/NanaZip/security/advisories/GHSA-89qw-8p49-32wf -

26 Feb 2026, 00:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-26 00:16

Updated : 2026-02-27 17:53

NVD link : CVE-2026-27710

Mitre link : CVE-2026-27710

CVE.ORG link : CVE-2026-27710

JSON object : View

Products Affected

m2team

  • nanazip
CWE
CWE-191

Integer Underflow (Wrap or Wraparound)