CVE-2026-26282

medium

Description

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.

References

https://github.com/user-attachments/files/25274143/poc.exe.zip

https://github.com/M2Team/NanaZip/security/advisories/GHSA-ccpc-2222-xv5c

Details

Source: Mitre, NVD

Published: 2026-02-19

Updated: 2026-02-20

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 6.6

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

Severity: Medium

CVSS v4

Base Score: 5.2

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00014