CVE-2026-27114 PUBLISHED

NanaZip has ROMFS Archive Infinite Loop

Assigner: GitHub_M
Reserved: 17.02.2026 Published: 19.02.2026 Updated: 19.02.2026

NanaZip is an open source file archive Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, circular NextOffset chains cause an infinite loop in the ROMFS archive parser. Version 6.0.1630.0 patches the issue.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	M2Team
Product	NanaZip
Versions	Version >= 5.0.1252.0, < 6.0.1630.0 is affected

References

https://github.com/M2Team/NanaZip/security/advisories/GHSA-hfg9-6rf9-5pgx
https://github.com/user-attachments/files/25274528/poc.zip

Problem Types

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') CWE