# CVE-2024-22019: NodeJS Node

- Exploited (CISA KEV): no
- Published: 2024-02-20
- CVSS: 7.5 HIGH (v3.0)
- EPSS: 3.2% (88th percentile)

A vulnerability in Node.js HTTP servers allows an attacker to send a specially crafted HTTP request with chunked encoding, leading to resource exhaustion and denial of service (DoS). The server reads an unbounded number of bytes from a single connection, exploiting the lack of limitations on chunk extension bytes. The issue can cause CPU and network bandwidth exhaustion, bypassing standard safeguards like timeouts and body size limits.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-05-22 | 457 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2025-05-22 · new · rule 200012092
  > Added: signature 200012092 "Node.js Chunk Extensions DoS" (Denial of Service, risk High), systems: Node.js. References: CVE-2024-22019.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2026-07-07 · updated · rule 200012092
  > Updated: signature 200012092 "Node.js Chunk Extensions DoS" (Denial of Service, risk High), systems: Node.js. References: CVE-2024-22019.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2024-22019 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2024-22019