CVE-2026-26282CWE-126

NanaZip has DotNet Single file OOB Heap Read

Medium · published February 19, 2026

CVSS v4.0
5.2
EPSS
0%
Percentile
7.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.2 · MEDIUM
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
EPSS
0.00187 · 7.9th percentile
Weakness
CWE-126 · Buffer Over-read
Published
2026-02-19T20:41Z
EPSS history
Timeline
  • 19 FEB 20:41Z
    NanaZip has DotNet Single file OOB Heap Read
    cvelistv5