CVE-2021-23490: Parse-Link-Header Project Parse-Link-Header

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

The package parse-link-header before 2.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the checkHeader function.

Affected products

• Parse-Link-Header Project Parse-Link-Header: before 2.0.0 (fixed in 2.0.0)

Published 2021-12-24. Last modified 2026-06-17.