Prototype Pollution in config-handler

CRITICAL 9.8CVE-2021-23448 · GHSA-2w3f-9w3q-qw77 · SNYK-JS-CONFIGHANDLER-1564947 · Published 11/10/2021 · updated 17/06/2026

In short

CVE-2021-23448 is a CRITICAL (CVSS 9.8) vulnerability affecting config-handler (config-handler project), config-handler.
Chance of exploitation in the next 30 days (EPSS): 1.2%, higher than 68.2% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
config-handler config-handler_project	`= 1.0.0`	No fix yet
config-handler npm	`≤ 2.0.3`	No fix yet

All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.

NVD description

All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.

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