CVE-2026-42355

LOW

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

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 3.3
EPSS 0.0011
EPSS Percentile 1.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-674
Status published
Products (2)
m2team/nanazip 5.0.1250.0 - 6.0.1698.0
M2Team/NanaZip >= 5.0.1250.0, < 6.0.1698.0
Published May 12, 2026
Tracked Since May 13, 2026