CVE-2026-42442
Analyzed Analyzed - Analysis Complete
BaseFortify

Publication date: 2026-05-12

Last updated on: 2026-05-18

Assigner: GitHub, Inc.

Description
NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a null-pointer dereference exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS image where the root inode (inode 2) is set to IFLNK (symlink) instead of IFDIR (directory). The parser unconditionally treats the root inode as a directory without checking its type, and when the symlink has an embedded target (small di_size), the directory data buffer is zero-length, causing a null-pointer dereference on the first read. This vulnerability is fixed in 6.0.1698.0.
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Meta Information
Published
2026-05-12
Last Modified
2026-05-18
Generated
2026-06-10
EPSS Evaluated
2026-06-08
NVD
CVE-2026-42442
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
m2team nanazip From 5.0.1250.0 (inc) to 6.0.1698.0 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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