VulnerabilityAnalyzed
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 File` bundle header parser due to missing bounds check.
MEDIUM 5.2EPSS 0.17%
Does this matter?
Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 5.2 MEDIUMCVSS: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/M
- EPSS
- 0.17% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-126, CWE-125
- Affected
- m2team/nanazip
- Source
- security-advisories@github.com
References
- https://github.com/M2Team/NanaZip/security/advisories/GHSA-ccpc-2222-xv5cExploit, Third Party Advisory
- https://github.com/user-attachments/files/25274143/poc.exe.zipExploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.