CVE-2026-87794

Impact

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.

Affected packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://github.com/nfriedly/node-bestzip
• https://github.com/nfriedly/node-bestzip/blob/v3.0.2/lib/bestzip.js
• https://github.com/nfriedly/node-bestzip/commit/2adb637b0acb05b8475de7db5af4b86ffcf40aaf
• https://github.com/nfriedly/node-bestzip/security/advisories/GHSA-p87m-9567-rgcc
• https://github.com/nfriedly/node-bestzip/security/advisories/GHSA-xhwx-rch4-ph2v
• https://www.npmjs.com/package/bestzip
• https://www.vulncheck.com/advisories/bestzip-2.2.6-and-3.0.2-argument-injection-via-the-native-zip-destination