CVE intelligence and bounded remediation

CVE-2021-22931 — Nodejs Node.Js security vulnerability

Critical CVSS 9.8

Node.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 of host names returned by Domain Name Servers in Node.js dns library which can lead to output of wrong hostnames (leading to Domain Hijacking) and injection vulnerabilities in applications using the library.

Severity
Critical
CVSS
9.8 (3.1)
Published
2021-08-16
CISA KEV
Not currently listed
Ecosystem
javascript/npm
Weaknesses
CWE-170, CWE-20

Affected products

  • nodejs / node.js
  • netapp / active_iq_unified_manager
  • netapp / nextgen_api
  • netapp / oncommand_insight
  • netapp / oncommand_workflow_automation
  • netapp / snapcenter

Showing 6 representative product identities from 18 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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