CVE-2026-42446

published 2026-05-12

CVE-2026-42446: NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a stack-based out-of-bounds read exists in the ZealFS filesystem image parser in…

Priority P4 31 high 7.1 CVSS 3.1

AV L AC L PR N UI R S U C H I N A H

NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a stack-based out-of-bounds read exists in the ZealFS filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted ZealFS v1 filesystem image. An attacker-controlled BitmapSize field in the file header drives an unbounded loop that reads past the end of a stack-allocated ZEALFS_V1_HEADER structure. This vulnerability is fixed in 6.0.1698.0.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
m2team	nanazip	—	—
m2team	nanazip	>= 5.0.1252.0 < 6.0.1698.0	6.0.1698.0

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CWE-125