A Node.js application that allows an attacker to trigger a DNS request for a host of their choice could trigger a Denial of Service in versi

Affected versions

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

• nodejs node.js12.16.3 and later · before 12.19.1
• nodejs node.js14.13.0 and later · before 14.15.1
• nodejs node.js15.0.0 and later · before 15.2.1

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
  • 11.0 and later · before 11.*affected · semver
  • 12.0 and later · before 12.19.1affected · semver
  • 13.0 and later · before 13.*affected · semver
  • 14.0 and later · before 14.15.1affected · 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-2021-22883Node.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
  53Plan
• 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

Published before and after this one in the same product

• ← EarlierCVE-2020-8251Sep 18, 2020 · Node.js < 14.11.0 is vulnerable to HTTP denial of service (DoS) attacks based on delayed requests submission which can make the server unabl
  33Monitor
• ← EarlierCVE-2020-8252Sep 18, 2020 · The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined the buffer size which
  31Monitor
• Later →CVE-2018-21270Dec 3, 2020 · Versions less than 0.0.6 of the Node.js stringstream module are vulnerable to an out-of-bounds read because of allocation of uninitialized b
  27Monitor

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.