CVE-2026-42446
Analyzed Analyzed - Analysis Complete
BaseFortify

Publication date: 2026-05-12

Last updated on: 2026-05-14

Assigner: GitHub, Inc.

Description
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.
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Meta Information
Published
2026-05-12
Last Modified
2026-05-14
Generated
2026-06-10
EPSS Evaluated
2026-06-08
NVD
CVE-2026-42446
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
m2team nanazip From 5.0.1252.0 (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-125 The product reads data past the end, or before the beginning, of the intended buffer.
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