CVE-2022-31129: Inefficient Regular Expression Complexity in moment

Affected versions

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

• debian debian linux10.0
• fedoraproject fedora35
• fedoraproject fedora36
• fedoraproject fedora37
• momentjs moment2.18.0 and later · before 2.29.4

Versions reported by the vendor

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

• moment moment

  • >= 2.18.0, < 2.29.4affected

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-2022-24785Path Traversal in Moment.js
  34Monitor
• CVE-2017-18214The moment module before 2.19.3 for Node.js is prone to a regular expression denial of service via a crafted date string, a different vulner
  31Monitor
• CVE-2016-4055The duration function in the moment package before 2.11.2 for Node.js allows remote attackers to cause a denial of service (CPU consumption)
  29Monitor

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.