What is GHSA-5947-m4fg-xhqg?

GHSA-5947-m4fg-xhqg is a security advisory published by GitHub Security Advisories with High severity. Prototype Pollution in lodash.mergewith

Why does GHSA-5947-m4fg-xhqg have no CVE ID yet?

GitHub Security Advisories published this advisory directly to customers before NVD assigned a CVE ID. This is the embargo-window disclosure pattern — vendors notify customers on day 0; NVD's public record follows days to weeks later.

Which products are affected by GHSA-5947-m4fg-xhqg?

GHSA-5947-m4fg-xhqg affects 1 product, including: npm/lodash.mergewith:\u003c 4.6.1.

GHSA-5947-m4fg-xhqgHighDisclosed before NVD

Prototype Pollution in lodash.mergewith

Vendor

GitHub Security Advisories

Published

September 3, 2020

Last Modified

January 9, 2023

📋 Description

Versions of lodash.mergewith before 4.6.1 are vulnerable to Prototype Pollution. The function 'mergeWith' may allow a malicious user to modify the prototype of Object via __proto__ causing the addition or modification of an existing property that will exist on all objects.

Recommendation

Update to version 4.6.1 or later.

🎯 Affected products1

npm/lodash.mergewith:< 4.6.1

🔗 References (2)

https://www.npmjs.com/advisories/1069
https://github.com/advisories/GHSA-5947-m4fg-xhqg