CVE-2026-27114

NanaZip has ROMFS Archive Infinite Loop

State: Published
Severity: 5.1 Medium
Published: Feb 19, 2026
Updated: Feb 25, 2026
Reserved: Feb 17, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	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	GitHub_M

Weaknesses

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

Affected Products

Product	Versions
NanaZipM2Team	>= 5.0.1252.0, < 6.0.1630.0Affected

References

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

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