news.mlab.sh
Vulnerabilities
Vulnerability

CVE-2025-55131

Reference data from vuln.mlab.sh, coverage from our own index.

CVSS
7.1 High
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Risk score
56.8
Published
2026-01-20
Status
Published

A flaw in Node.js's buffer allocation logic can expose uninitialized memory when allocations are interrupted, when using the `vm` module with the timeout option. Under specific timing conditions, buffers allocated with `Buffer.alloc` and other `TypedArray` instances like `Uint8Array` may contain leftover data from previous operations, allowing in-process secrets like tokens or passwords to leak or causing data corruption. While exploitation typically requires precise timing or in-process code execution, it can become remotely exploitable when untrusted input influences workload and timeouts, leading to potential confidentiality and integrity impact.

Weaknesses

CWE-120CWE-497

Coverage 1

Advisories and references