CVE-2020-7687

HIGH

fast-http - Path Traversal via fs.readFile in index.js

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-7687. PoCs published by AikidoSec.

AI-analyzed exploit summary This repository contains a functional exploit PoC for CVE-2020-7687, demonstrating a path traversal vulnerability in the 'fast-http' Node.js library. The PoC includes tests for both vulnerable and protected scenarios, with Docker setup for easy reproduction.

Description

This affects all versions of package fast-http. There is no path sanitization in the path provided at fs.readFile in index.js.

Exploits (1)

github WORKING POC 6 stars
by AikidoSec · javascriptpoc
https://github.com/AikidoSec/zen-0-days/tree/main/node/CVE-2020-7687

This repository contains a functional exploit PoC for CVE-2020-7687, demonstrating a path traversal vulnerability in the 'fast-http' Node.js library. The PoC includes tests for both vulnerable and protected scenarios, with Docker setup for easy reproduction.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: fast-http (Node.js library)
No auth needed
Prerequisites: Node.js environment · Docker (optional for containerized execution)
devstral-2 · analyzed Feb 27, 2026 Full analysis →

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://snyk.io/vuln/SNYK-JS-FASTHTTP-572892

Scores

CVSS v3 7.5
EPSS 0.0176
EPSS Percentile 75.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-22
Status published
Products (2)
fast-http_project/fast-http
npm/fast-http 0npm
Published Jul 25, 2020
Tracked Since Feb 18, 2026