CVE-2026-32141
flatted: Unbounded recursion DoS in parse() revive phase
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.5EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
12 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
WebReflection · flattedWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →