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CVE-2025-55131

Quick assessment

Affected
nodejs node
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Node.js是Node.js开源的一个开源、跨平台的 JavaScript 运行时环境。 Node.js存在安全漏洞，该漏洞源于缓冲区分配逻辑缺陷，可能导致未初始化内存泄露，造成令牌或密码等进程内秘密泄露或数据损坏。

AI Predicted 7.5 Difficulty: Moderate EPSS 3.51% · P89

Affected Version Matrix 19

VendorProduct Version RangeStatus
nodejs node 20.19.6≤ 20.19.6 affected
22.21.1≤ 22.21.1 affected
24.12.0≤ 24.12.0 affected
25.2.1≤ 25.2.1 affected
4.0< 4.* affected
5.0< 5.* affected
6.0< 6.* affected
7.0< 7.* affected
… +11 more rows
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I. Basic Information for CVE-2025-55131

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Node.js 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Node.js是Node.js开源的一个开源、跨平台的 JavaScript 运行时环境。 Node.js存在安全漏洞，该漏洞源于缓冲区分配逻辑缺陷，可能导致未初始化内存泄露，造成令牌或密码等进程内秘密泄露或数据损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
nodejs node 20.19.6 ~ 20.19.6 -

II. Public POCs for CVE-2025-55131

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III. Intelligence Information for CVE-2025-55131

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Security Blog Posts for CVE-2025-55131 (1)

Same Patch Batch · nodejs · 2026-01-20 · 8 CVEs total

CVE-2026-21637 Node.js 安全漏洞
CVE-2026-21636 Node.js 安全漏洞
CVE-2025-59465 Node.js 安全漏洞
CVE-2025-59464 Node.js 安全漏洞
CVE-2025-59466 Node.js 安全漏洞
CVE-2025-55132 Node.js 安全漏洞
CVE-2025-55130 Node.js 安全漏洞

IV. Related Vulnerabilities

Same product: node
Same vendor: nodejs

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