CVE-2026-42355: 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)…

PriorityP423medium5.5CVSS 3.1

AVLACLPRNUIRSUCNINAH

EPSS

0.11%

1.5th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
m2team	nanazip	—	—
m2team	nanazip	>= 5.0.1250.0 < 6.0.1698.0	6.0.1698.0

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.