MEDIUMCVSS v3.1 5.9Vulnerability

CVE-2026-119051

flat through 6.0.1 contains an uncontrolled resource allocation vulnerability in unflatten() that allows attackers to create huge sparse arrays via unbounded numeric keys. Attackers can supply flattened keys such as a.4294967294, causing iteration with forEach, spread or JSON.stringify to block the Node.js event loop.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-29T15:51:37.835109+00:00
Cvss severity
MEDIUM
Cvss score
5.9
Retrieved at
2026-10-29T15:52:27+00:00
Score
5.9
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-119051
Cvss vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
First seen by Signal
2026-10-29T15:52:27+00:00
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Published at
2026-10-29T14:17:52.157
Last modified
2026-10-29T14:17:52.157

Related Entities (1)

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CVE-2026-119051 (CVSS v3.1 5.9) — Ninja Signal Threat Intelligence | Ninja Signal