What’s Vulnerable › Vulnerabilities

CVE-2018-16486

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-02-01 · updated 2026-06-17
• Weakness: CWE-400

Description

A prototype pollution vulnerability was found in defaults-deep <=0.2.4 that would allow a malicious user to inject properties onto Object.prototype.

Affected products

• HackerOne defaults-deep: through 0.2.4

References

• https://hackerone.com/reports/380878
• https://hackerone.com/reports/380878

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