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CVE-2026-48931

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.

nodejs node是nodejs组织的一个JavaScript运行环境。 nodejs node 22.22.3及之前版本、24.16.0及之前版本和26.3.0及之前版本存在竞争条件问题漏洞，该漏洞源于HTTP Agent存在竞争条件问题，可能导致客户端在接受响应前发送的请求被当作有效响应。

AI Predicted 5.3 Difficulty: Easy EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
nodejs node 22.22.3≤ 22.22.3 affected
24.16.0≤ 24.16.0 affected
26.3.0≤ 26.3.0 affected
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I. Basic Information for CVE-2026-48931

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw in Node.js HTTP Agent can cause a client to accept as valid a response that is send before the client has sent the request. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
nodejs node 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
nodejs node是nodejs组织的一个JavaScript运行环境。 nodejs node 22.22.3及之前版本、24.16.0及之前版本和26.3.0及之前版本存在竞争条件问题漏洞，该漏洞源于HTTP Agent存在竞争条件问题，可能导致客户端在接受响应前发送的请求被当作有效响应。
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 22.22.3 ~ 22.22.3 -

II. Public POCs for CVE-2026-48931

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III. Intelligence Information for CVE-2026-48931

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Security Blog Posts for CVE-2026-48931 (1)

IV. Related Vulnerabilities

Same product: node
Same vendor: nodejs
Same weakness: CWE-367

V. Comments for CVE-2026-48931

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