CVE-2026-26282: NanaZip is an open source file archive Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, NanaZip has an out-of-bounds heap read in `.NET Single…

PriorityP429medium6.6CVSS 3.1

AVLACLPRLUIRSUCHINAH

EPSS

0.17%

7.0th percentile

NanaZip is an open source file archive Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, NanaZip has an out-of-bounds heap read in `.NET Single File` bundle header parser due to missing bounds check. Opening a crafted file with NanaZip causes a crash or leaks heap data to the user. Version 6.0.1630.0 patches the issue.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
m2team	nanazip	—	—
m2team	nanazip	>= 5.0.1252.0 < 6.0.1630.0	6.0.1630.0

CVSS provenance

nvdv3.16.6MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

nvdv4.05.2MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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