CVE-2026-87794
High
Description
bestzip versions 2.2.6 and 3.0.2 contain an argument injection vulnerability in the nativeZip function that allows attackers to inject arbitrary arguments to the Info-ZIP backend. Attackers can supply a malicious destination path combined with crafted source entries to execute arbitrary commands with Node.js process privileges. Fixed in 2.2.7 and 3.0.3.
SeverityHigh
CVSS8.4
Exploit probability—
ProductNfriedly Bestzip
PublishedSep 9, 2026
First seenSep 9, 2026
Weakness typeCWE-88CWE-88
How to fix
Update
- nfriedly bestzip2.2.7, 3.0.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nfriedly bestzip | 2.2.6 ≤ v < 2.2.7, 3.0.2 ≤ v < 3.0.3 | 2.2.7, 3.0.3 |
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