Uncaught Exception Affecting M2Team/NanaZip package, versions [,6.5.1749.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-M2TEAMNANAZIP-17950396
- published11 Jul 2026
- disclosed10 Jul 2026
- creditUnknown
Introduced: 10 Jul 2026
CVE-2026-55780 (opens in a new tab)How to fix?
Upgrade M2Team/NanaZip to version 6.5.1749.0 or higher.
Overview
Affected versions of this package are vulnerable to Uncaught Exception through the Extract process when handling a .NET single-file bundle with an unvalidated entry Size field. An attacker can cause the application to crash or exhaust system resources by supplying a crafted bundle that triggers uncontrolled memory allocation.