# s0md3v/Corsy

CORS Misconfiguration Scanner

Repository: https://github.com/s0md3v/Corsy
Canonical: https://ross.abutalabs.com/products/corsy
Language: Python
License: GPL-3.0
License Family: copyleft
Topics: cors, cors-misconfiguration-scanner, cors-scanner, vulnerability-scanner
Last push: 2022-09-17T10:11:37+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2474, "days_push": 1446, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1534, forks 191 (observed 2026-08-28T04:04:59.670173+00:00)

## What it is
Corsy is a lightweight Python 3 CLI tool that scans websites for known CORS (Cross-Origin Resource Sharing) misconfigurations. It tests for eleven bypass techniques such as null origin, origin reflection, and wildcard values, and can export results to JSON.

## Use cases
- scan a website for CORS misconfigurations
- check a list of URLs for exploitable CORS policies
- find null origin bypasses in a web app
- audit CORS headers during a bug bounty
- export CORS scan results to JSON
- run threaded CORS scans on many domains

## When to choose
- you need a fast, dependency-light CLI scanner for CORS issues
- you want to bulk-scan URL lists from files or stdin
- you need JSON output for reporting pipelines

## When to avoid
- you need a full web vulnerability scanner beyond CORS
- you want a GUI or continuous monitoring solution
- you need actively maintained tooling with recent updates

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: vulnerability-scanning, security, http-client
- domain: security, penetration-testing, web-development
- platform: python, cli, windows
- tags: cors, cors-misconfiguration, security-scanner, bug-bounty, recon, linux, macos

## Member repositories
- s0md3v/Corsy (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:59.670173+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:31:13.343252+00:00, confidence not recorded.
  - readme: https://github.com/s0md3v/Corsy (fetched 2026-08-28T04:04:59.670173+00:00, sha e85145e305c2)
- Data as of 2026-08-30T08:39:29.467469+00:00.