CVE-2026-42355: CWE-674: Uncontrolled Recursion in M2Team NanaZip
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.
AI Analysis
Technical Summary
CVE-2026-42355 describes an uncontrolled recursion vulnerability (CWE-674) in the Electron Archive (ASAR) parser component of NanaZip, an open source file archiver. Specifically, in versions from 5.0.1252.0 to before 6.0.1698.0, parsing a crafted .asar file containing deeply nested JSON triggers unbounded recursion in both the nlohmann::json::parse function and the parser's GetAllPaths handler. This recursion leads to stack exhaustion and a crash of the NanaZip process. The vulnerability is resolved in version 6.0.1698.0.
Potential Impact
The vulnerability causes a denial of service by crashing the NanaZip application when processing maliciously crafted .asar files with deeply nested JSON structures. There is no impact on confidentiality or integrity. The CVSS v3.1 base score is 3.3 (low), reflecting local attack vector, low complexity, no privileges required, user interaction needed, and impact limited to availability.
Mitigation Recommendations
This vulnerability is fixed in NanaZip version 6.0.1698.0. Users should upgrade to this version or later to remediate the issue. Since the vendor advisory or patch links are not explicitly provided, confirm the update availability from the official NanaZip sources before upgrading. No other mitigations are indicated or required.
CVE-2026-42355: CWE-674: Uncontrolled Recursion in M2Team NanaZip
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-42355 describes an uncontrolled recursion vulnerability (CWE-674) in the Electron Archive (ASAR) parser component of NanaZip, an open source file archiver. Specifically, in versions from 5.0.1252.0 to before 6.0.1698.0, parsing a crafted .asar file containing deeply nested JSON triggers unbounded recursion in both the nlohmann::json::parse function and the parser's GetAllPaths handler. This recursion leads to stack exhaustion and a crash of the NanaZip process. The vulnerability is resolved in version 6.0.1698.0.
Potential Impact
The vulnerability causes a denial of service by crashing the NanaZip application when processing maliciously crafted .asar files with deeply nested JSON structures. There is no impact on confidentiality or integrity. The CVSS v3.1 base score is 3.3 (low), reflecting local attack vector, low complexity, no privileges required, user interaction needed, and impact limited to availability.
Mitigation Recommendations
This vulnerability is fixed in NanaZip version 6.0.1698.0. Users should upgrade to this version or later to remediate the issue. Since the vendor advisory or patch links are not explicitly provided, confirm the update availability from the official NanaZip sources before upgrading. No other mitigations are indicated or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-26T13:26:14.516Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a03813ccbff5d861012f661
Added to database: 5/12/2026, 7:36:28 PM
Last enriched: 5/12/2026, 8:08:11 PM
Last updated: 5/13/2026, 4:47:16 AM
Views: 2
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