What’s Vulnerable › Vulnerabilities

CVE-2021-23391: Arbitrary File Write via Archive Extraction (Zip Slip)

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-07 · updated 2026-06-17
• Weakness: CWE-22

Description

This affects all versions of package calipso. It is possible for a malicious module to overwrite files on an arbitrary file system through the module install functionality.

Affected products

• calipso: all versions

References

• https://github.com/cliftonc/calipso
• https://snyk.io/vuln/SNYK-JS-CALIPSO-1300555
• https://github.com/cliftonc/calipso
• https://snyk.io/vuln/SNYK-JS-CALIPSO-1300555

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