// For flags

CVE-2024-22019

nodejs: reading unprocessed HTTP request with unbounded chunk extension allows DoS attacks

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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.

Una vulnerabilidad en los servidores HTTP de Node.js permite a un atacante enviar una solicitud HTTP especialmente manipulada con codificación fragmentada, lo que provoca el agotamiento de los recursos y la denegación de servicio (DoS). El servidor lee una cantidad ilimitada de bytes de una única conexión, aprovechando la falta de limitaciones en los bytes de extensión de fragmentos. El problema puede provocar el agotamiento del ancho de banda de la CPU y de la red, pasando por alto salvaguardas estándar como tiempos de espera y límites de tamaño corporal.

A flaw was found in Node.js due to a lack of safeguards on chunk extension bytes. The server may read an unbounded number of bytes from a single connection, which can allow an attacker to send a specially crafted HTTP request with chunked encoding, leading to resource exhaustion and a denial of service.

An update for the nodejs:16 module is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Issues addressed include a denial of service vulnerability.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-01-04 CVE Reserved
  • 2024-02-20 CVE Published
  • 2025-02-13 CVE Updated
  • 2025-04-03 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-404: Improper Resource Shutdown or Release
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Node.js
Search vendor "Node.js"
 Node.js
Search vendor "Node.js" for product "Node.js"
 21.6.1
Search vendor "Node.js" for product "Node.js" and version "21.6.1"
en
Affected