CVE-2026-27711

Description

NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0, a memory corruption vulnerability in NanaZip’s UFS parser allows a crafted `.ufs/.ufs2/.img` file to trigger out-of-bounds memory access during archive open/listing. The bug is reachable via normal user file-open flow and can cause process crash, hang, and potentially exploitable heap corruption. Versions 6.0.1638.0 and 6.5.1638.0 fix the issue.

PUBLISHED Reserved 2026-02-23 | Published 2026-02-25 | Updated 2026-02-26 | Assigner GitHub_M

Problem types

CWE-125: Out-of-bounds Read

Product status

References

github.com/...anaZip/security/advisories/GHSA-rjwv-4w7x-hc9c exploit

github.com/...anaZip/security/advisories/GHSA-rjwv-4w7x-hc9c

cve.org (CVE-2026-27711)

nvd.nist.gov (CVE-2026-27711)

Download JSON