Out-of-bounds Read Affecting M2Team/NanaZip package, versions [3.0.1000.0,6.0.1698.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-UNMANAGED-M2TEAMNANAZIP-17660859
  • published28 Jun 2026
  • disclosed12 Jun 2026
  • creditUnknown

Introduced: 12 Jun 2026

CVE-2026-47223  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade M2Team/NanaZip to version 6.0.1698.0 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read in the AVB hashtree descriptor parser due to a 32-bit unsigned integer overflow in the bounds check, which allows an attacker-controlled salt_len field to bypass validation. An attacker can cause the CByteBuffer::CopyFrom process to read up to approximately 4 GiB past the end of a buffer by providing a crafted vbmeta image with a malicious salt_len value.

References

CVSS Base Scores

version 4.0
version 3.1