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Case File

CVE-2021-23490

HIGH · CVSS 7.5 EPSS 1.83% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-24 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-23490
Severity
HIGH
CVSS
7.5
EPSS
1.83%

Original NVD Description

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