What’s Vulnerable › Vulnerabilities

CVE-2020-7639

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-06 · updated 2026-10-08
• Weakness: CWE-1321

Description

eivindfjeldstad-dot below 1.0.3 is vulnerable to Prototype Pollution.The function 'set' could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.

Affected products

• dot: before 1.0.3 — fixed in 1.0.3

How to fix

Upgrade to a fixed version: dot 1.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/eivindfjeldstad/dot/commit/774e4b0c97ca35d2ae40df2cd14428d37dd07a0b
• https://snyk.io/vuln/SNYK-JS-EIVIFJDOT-564435
• https://github.com/eivindfjeldstad/dot/commit/774e4b0c97ca35d2ae40df2cd14428d37dd07a0b
• https://snyk.io/vuln/SNYK-JS-EIVIFJDOT-564435

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