CVE-2026-42444 (GCVE-0-2026-42444)
Vulnerability from cvelistv5
Published
2026-05-12 19:22
Modified
2026-05-14 19:17
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a denial-of-service vulnerability exists in the littlefs filesystem image parser in NanaZip. The handler's Open method reads BlockCount directly from the attacker-controlled superblock without any validation against the actual file size or any upper-bound ceiling, then iterates BlockCount times, allocating a file-path entry per iteration. A crafted 44-byte littlefs image with BlockCount = 0xFFFFFFFF causes ~4 billion heap allocations, exhausting available memory. This vulnerability is fixed in 6.0.1698.0.
Impacted products
Vendor Product Version
M2Team NanaZip Version: >= 5.0.1250.0, < 6.0.1698.0
Create a notification for this product.
Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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