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CVE-2024-38355— Unhandled 'error' event in socket.io

Quick assessment

Affected
socketio socket.io
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Socket.IO是Socket.IO公司的一个面向实时web 应用的 JavaScript 库。 Socket.IO存在安全漏洞，该漏洞源于特制的Socket.IO数据包可能会在服务器上触发未捕获的异常，从而终止Node.js进程。

CVSS 7.3 · High EPSS 0.81% · P55

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood
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I. Basic Information for CVE-2024-38355

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Unhandled 'error' event in socket.io
Source: CVE Program / CVE List V5
Vulnerability Description
Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. This issue is fixed by commit `15af22fc22` which has been included in `socket.io@4.6.2` (released in May 2023). The fix was backported in the 2.x branch as well with commit `d30630ba10`. Users are advised to upgrade. Users unable to upgrade may attach a listener for the "error" event to catch these errors.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Socket.IO 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Socket.IO是Socket.IO公司的一个面向实时web 应用的 JavaScript 库。 Socket.IO存在安全漏洞，该漏洞源于特制的Socket.IO数据包可能会在服务器上触发未捕获的异常，从而终止Node.js进程。
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
socketio socket.io < 2.5.1 -

II. Public POCs for CVE-2024-38355

# POC Description Source Link Shenlong Link
1 Proof of concept of CVE-2024-47554 https://github.com/PawelMurdzek/CVE-2024-38355-PoC POC Details
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 6601 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
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III. Intelligence Information for CVE-2024-38355

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Patches & Fixes for CVE-2024-38355 (2)

Vendor Advisories for CVE-2024-38355 (1)

IV. Related Vulnerabilities

Same product: socket.io
Same vendor: socketio
Same weakness: CWE-20

V. Comments for CVE-2024-38355

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