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CVE-2026-42355— NanaZip: Uncontrolled recursion in NanaZip Electron ASAR parser causes stack exhaustion

CVSS 3.3 · Low EPSS 0.01% · P2

Possible ATT&CK Techniques 1AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProductVersion RangeStatus
M2TeamNanaZip>= 5.0.1250.0, < 6.0.1698.0affected
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I. Basic Information for CVE-2026-42355

Vulnerability Information

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Vulnerability Title
NanaZip: Uncontrolled recursion in NanaZip Electron ASAR parser causes stack exhaustion
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
未经控制的递归
Source: NVD (National Vulnerability Database)
Vulnerability Title
NanaZip 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NanaZip是M2-Team开源的一个压缩软件。 NanaZip 5.0.1252.0版本至6.0.1698.0之前版本存在安全漏洞,该漏洞源于Electron Archive解析器中nlohmann::json::parse和GetAllPaths函数递归无深度限制,可能导致堆栈耗尽和进程崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
M2TeamNanaZip >= 5.0.1250.0, < 6.0.1698.0 -

II. Public POCs for CVE-2026-42355

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III. Intelligence Information for CVE-2026-42355

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Same Patch Batch · M2Team · 2026-05-12 · 7 CVEs total

CVE-2026-424464.4 MEDIUMNanaZip: Stack out-of-bounds read in NanaZip ZealFS bitmap parser
CVE-2026-442154.4 MEDIUMNanaZip: Heap out-of-bounds write in NanaZip UFS directory parser
CVE-2026-424423.3 LOWNanaZip: Null-pointer dereference in NanaZip UFS parser when root inode is a symlink
CVE-2026-424443.3 LOWNanaZip: Unbounded resource consumption in NanaZip littlefs parser via attacker-controlled
CVE-2026-424433.3 LOWNanaZip: Integer divide-by-zero in NanaZip UFS inode offset calculation
CVE-2026-424453.3 LOWNanaZip: Uncontrolled recursion in NanaZip UFS directory traversal causes stack exhaustion

IV. Related Vulnerabilities

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