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CVE-2026-42355

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

Published: May 12, 2026Updated: May 18, 2026 Sources: CVE List NVDCWE-674
NVD MITRE
3.3CVSSLOW
EPSS Score
0.1%
Top 98.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-674

Affected Products

nanazipm2team
On-prem
Consumer Software / file-utility
NanaZipM2Team
On-prem
Consumer Software / file-utility
m2teamcommercialConsumer Softwareaka nanazip

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Impact
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References

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

Timeline

Published
May 12, 2026
Last Updated
May 18, 2026

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