What’s Vulnerable › Vulnerabilities

CVE-2021-23702: Prototype Pollution

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-18 · updated 2026-06-17
• Weakness: CWE-1321

Description

The package object-extend from 0.0.0 are vulnerable to Prototype Pollution via object-extend.

Affected products

• object-extend: through 0.5.0

References

• https://snyk.io/vuln/SNYK-JS-OBJECTEXTEND-2401470
• https://snyk.io/vuln/SNYK-JS-OBJECTEXTEND-2401470

Get alerted when CVE-2021-23702 or the next vulnerability affects your stack