CVE-2026-106074

MEDIUM Status: Awaiting Analysis

CVSS Scores

CVSS v3.x Base Score
4.8
MEDIUM

Description

A flaw in Node.js `crypto` causes the internal entropy caches used by `crypto.randomUUID()`, `crypto.randomUUIDv7()`, and `crypto.randomInt()` to be saved into user-land startup snapshots (`--build-snapshot`) and single executable applications built with `useSnapshot`. If any of these functions, or an API that relies on them such as `URL.createObjectURL()`, is called while the snapshot is built, every process started from that snapshot returns the same values until the cache is refilled: up to 127 UUIDs and about 1,000 `randomInt()` values. Identifiers expected to be unique can collide across processes, and values issued by one process can be predicted by observing another. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.

Published
October 23, 2026 5:17 PM
Last Modified
October 23, 2026 7:42 PM
Source
[email protected]

Weaknesses (CWE)

CWE-330

References

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