CVE-2026-42355

NanaZip: Uncontrolled recursion in NanaZip Electron ASAR parser causes stack exhaustion

State: Published
Severity: 3.3 Low
Published: May 12, 2026
Updated: May 13, 2026
Reserved: Apr 26, 2026

Description

NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, an uncontrolled recursion vulnerability exists in the Electron Archive (ASAR) parser in NanaZip. When opening a crafted .asar file with deeply nested JSON in the header, both nlohmann::json::parse and the handler's GetAllPaths function recurse without depth limits, exhausting the thread stack and crashing the NanaZip process. This vulnerability is fixed in 6.0.1698.0.

Scores

CVSS	Score	Vector	Source
3.1	3.3 Low	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	GitHub_M

Weaknesses

CWE-674 Uncontrolled Recursion

Affected Products

Product	Versions
NanaZipM2Team	>= 5.0.1250.0, < 6.0.1698.0Affected

References

https://github.com/M2Team/NanaZip/security/advisories/GHSA-4gxf-p4q6-gfrf

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