CVE-2026-26282

NanaZip is an open source file archive Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, NanaZip has an out-of-bounds heap read in `.NET Single File` bundle header parser due to missing bounds check. Opening a crafted file with NanaZip causes a crash or leaks heap data to the user. Version 6.0.1630.0 patches the issue.

CVSS v3 6.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.3 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/M2Team/NanaZip/security/advisories/GHSA-ccpc-2222-xv5c	Exploit Third Party Advisory
https://github.com/user-attachments/files/25274143/poc.exe.zip	Exploit

Configurations

Configuration 1 (hide)

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

History

20 Feb 2026, 19:42

Type	Values Removed	Values Added
References	~~() https://github.com/M2Team/NanaZip/security/advisories/GHSA-ccpc-2222-xv5c -~~	() https://github.com/M2Team/NanaZip/security/advisories/GHSA-ccpc-2222-xv5c - Exploit, Third Party Advisory
References	~~() https://github.com/user-attachments/files/25274143/poc.exe.zip -~~	() https://github.com/user-attachments/files/25274143/poc.exe.zip - Exploit
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.6
CPE		cpe:2.3:a:m2team:nanazip::::::::
CWE		CWE-125
First Time		M2team M2team nanazip

19 Feb 2026, 21:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-19 21:18

Updated : 2026-02-20 19:42

NVD link : CVE-2026-26282

Mitre link : CVE-2026-26282

CVE.ORG link : CVE-2026-26282

JSON object : View

Products Affected

m2team

nanazip

CWE

CWE-126

Buffer Over-read

CWE-125

Out-of-bounds Read

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