What’s Vulnerable › Vulnerabilities

CVE-2019-10795

• Severity: medium (CVSS 6.3 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: 2020-02-18 · updated 2026-06-17
• Weakness: CWE-74

Description

undefsafe before 2.0.3 is vulnerable to Prototype Pollution. The 'a' function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.

Affected products

• Snyk undefsafe: before 2.0.3 — fixed in 2.0.3

How to fix

Upgrade to a fixed version: Snyk undefsafe 2.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/remy/undefsafe/commit/f272681b3a50e2c4cbb6a8533795e1453382c822
• https://snyk.io/vuln/SNYK-JS-UNDEFSAFE-548940
• https://github.com/remy/undefsafe/commit/f272681b3a50e2c4cbb6a8533795e1453382c822
• https://snyk.io/vuln/SNYK-JS-UNDEFSAFE-548940

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