CVE-2026-26282: m2team Nanazip

Medium severity, CVSS 6.6. EPSS: 0.2% chance of exploitation in the next 30 days.

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 products

• m2team Nanazip: from 5.0.1252.0, before 6.0.1630.0 (fixed in 6.0.1630.0)

Published 2026-02-19. Last modified 2026-06-17.