CVE-2021-23448

9.8 criticalEPSS 1.2%

Critical (9.8) in config-handler project config-handler. EPSS 1.2% chance of exploitation in the next 30 days.

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

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE: CWE-1321
Published: 2021-10-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-2w3f-9w3q-qw77	npm	config-handler	<=2.0.3	no fix published