What’s Vulnerable › Vulnerabilities

CVE-2021-23373: Prototype Pollution

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-07-25 · updated 2026-06-17
• Weakness: CWE-1321

Description

All versions of package set-deep-prop are vulnerable to Prototype Pollution via the main functionality.

Affected products

• set-deep-prop: all versions

References

• https://security.snyk.io/vuln/SNYK-JS-SETDEEPPROP-1083231
• https://security.snyk.io/vuln/SNYK-JS-SETDEEPPROP-1083231

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