CVE-2021-22883: Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• nodejs node.js10.0.0 and later · before 10.24.0
• nodejs node.js12.0.0 and later · before 12.21.0
• nodejs node.js14.0.0 and later · before 14.16.0
• nodejs node.js15.0.0 and later · before 15.10.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (hackerone). Independent of NVD's CPE analysis and usually ahead of it.

• NodeJS Node

  • 4.0 and later · before 4.*affected · semver
  • 5.0 and later · before 5.*affected · semver
  • 6.0 and later · before 6.*affected · semver
  • 7.0 and later · before 7.*affected · semver
  • 8.0 and later · before 8.*affected · semver
  • 9.0 and later · before 9.*affected · semver
  • 10.0 and later · before 10.24.0affected · semver
  • 11.0 and later · before 11.*affected · semver
  • 12.0 and later · before 12.21.0affected · semver
  • 13.0 and later · before 13.*affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2019-15605HTTP request smuggling in Node.js 10, 12, and 13 causes malicious payload delivery when transfer-encoding is malformed
  56Plan
• CVE-2021-22930Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to a use after free attack where an attacker might be able to exploit the memory c
  50Plan
• CVE-2021-22931Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to Remote Code Execution, XSS, Application crashes due to missing input validation
  46Plan

Published before and after this one in the same product

• ← EarlierCVE-2020-8265Jan 6, 2021 · Node.js versions before 10.23.1, 12.20.1, 14.15.4, 15.5.1 are vulnerable to a use-after-free bug in its TLS implementation.
  35Monitor
• ← EarlierCVE-2020-8287Jan 6, 2021 · Node.js versions before 10.23.1, 12.20.1, 14.15.4, 15.5.1 allow two copies of a header field in an HTTP request (for example, two Transfer-E
  31Monitor
• Later →CVE-2021-22884Mar 3, 2021 · Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to DNS rebinding attacks as the whitelist includes “localhost6”.
  41Plan

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1function expand(node) {2  return node.children.map(expand);3}

1const MAX_DEPTH = 32;2function expand(node, depth = 0) {3  if (depth > MAX_DEPTH) throw new Error("too deep");4  return node.children.map((c) => expand(c, depth + 1));5}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.