CVE-2026-32141
flatted vulnerable to unbounded recursion DoS in parse() revive phase
7.5
HIGH
CVSS 3.1
EPSS 0.02%
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.
How to fix CVE-2026-32141
To remediate CVE-2026-32141, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 3.4.0 or later
Is CVE-2026-32141 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 3.4.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |