CVE-2019-10747

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-08-23 · updated 2026-06-17
Weakness: CWE-400

Description

set-value is vulnerable to Prototype Pollution in versions lower than 3.0.1. The function mixin-deep could be tricked into adding or modifying properties of Object.prototype using any of the constructor, prototype and _proto_ payloads.

Affected products

set-value: before 2.0.1; from 3.0.0 before 3.0.1 — fixed in 2.0.1, 3.0.1

How to fix

Upgrade to a fixed version: set-value 2.0.1, 3.0.1. Check the vendor advisory for mitigations.

References

https://lists.apache.org/thread.html/b46f35559c4a97cf74d2dd7fe5a48f8abf2ff37f879083920af9b292%40%3Cdev.drat.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3EJ36KV6MXQPUYTFCCTDY54E5Y7QP3AV/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E3HNLQZQINMZK6GYB2UTKK4VU7WBV2OT/
https://snyk.io/vuln/SNYK-JS-SETVALUE-450213
https://lists.apache.org/thread.html/b46f35559c4a97cf74d2dd7fe5a48f8abf2ff37f879083920af9b292%40%3Cdev.drat.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3EJ36KV6MXQPUYTFCCTDY54E5Y7QP3AV/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E3HNLQZQINMZK6GYB2UTKK4VU7WBV2OT/
https://snyk.io/vuln/SNYK-JS-SETVALUE-450213

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