What’s Vulnerable › Vulnerabilities

CVE-2021-23484: Arbitrary File Write via Archive Extraction (Zip Slip)

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-28 · updated 2026-06-17
• Weakness: CWE-22

Description

The package zip-local before 0.3.5 are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) which can lead to an extraction of a crafted file outside the intended extraction directory.

Affected products

• Zip-Local Project Zip-Local: before 0.3.5 — fixed in 0.3.5

How to fix

Upgrade to a fixed version: Zip-Local Project Zip-Local 0.3.5. Check the vendor advisory for mitigations.

References

• https://github.com/Mostafa-Samir/zip-local/blob/master/main.js%23L365
• https://github.com/Mostafa-Samir/zip-local/commit/949446a95a660c0752b1db0c654f0fd619ae6085
• https://snyk.io/vuln/SNYK-JS-ZIPLOCAL-2327477
• https://github.com/Mostafa-Samir/zip-local/blob/master/main.js%23L365
• https://github.com/Mostafa-Samir/zip-local/commit/949446a95a660c0752b1db0c654f0fd619ae6085
• https://snyk.io/vuln/SNYK-JS-ZIPLOCAL-2327477

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