Uncontrolled Recursion Vulnerability in NanaZip Open Source File Archive
CVE-2026-42355

3.3LOW

Key Information:

Vendor

M2team

Status
Nanazip
Vendor
CVE Published:
12 May 2026

What is CVE-2026-42355?

NanaZip, an open-source file archive tool, is susceptible to an uncontrolled recursion vulnerability within its Electron Archive (ASAR) parser. This issue is triggered when a specially crafted .asar file containing deeply nested JSON headers is opened. The recursive calls within the nlohmann::json::parse and the GetAllPaths function can lead to exhaustion of the thread stack, ultimately causing the NanaZip process to crash. Users are recommended to upgrade to version 6.0.1698.0 or later for protection against this vulnerability.

Affected Version(s)

NanaZip >= 5.0.1250.0, < 6.0.1698.0

References

https://github.com/M2Team/NanaZip/security/advisories/GHS...
x_refsource_CONFIRM

CVSS V3.1

Score:
3.3
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.