VULNERABILITY INTELLIGENCE

CVE-2026-32141

CVSS score7.5 HIGH
EPSS probability0.84%
CISA KEVNot currently listed
Published2026-03-12
Last modified2026-09-04
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

flatted is a circular JSON parser. Prior to 3.4.0, flatted's parse() function uses a recursive revive() phase to resolve circular references in deserialized JSON. When given a crafted payload with deeply nested or self-referential $ indices, the recursion depth is unbounded, causing a stack overflow that crashes the Node.js process. This vulnerability is fixed in 3.4.0.

Weakness classification

  • security-advisories@github.com: CWE-674
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-770

Primary references