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crowdsec

README.md

CrowdSec

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<TL;DR>

CrowdSec is a free, modern, and collaborative behavior detection engine coupled with a global IP reputation network. It stacks on fail2ban's philosophy but is IPV6 compatible and 60x faster (Go vs. Python) and uses Grok patterns to parse logs. CrowdSec is engineered for modern Cloud / Containers / VM-based infrastructures (by decoupling detection and remediation). Once detected, you can remedy threats with various methods (firewall block, Nginx HTTP 403, Captchas, …) while sharing the aggressive IP to CrowdSec Network and improving everyone's security further.

OSS Projects

  • CrowdSec - The open-source and participative IPS able to analyze visitor behavior & provide an adapted response to all kinds of attacks. It also leverages the crowd power to generate a global CTI database to protect the user network.
  • CrowdSec Hub: Host scenarios and parsers for CrowdSec Agent
  • Home Assistant CrowdSec Addons: CrowdSec for home-assistant.io
  • Firewall Bouncer: Crowdsec bouncer written in golang for firewalls

Pinned Loading

  1. crowdsec crowdsec Public

    CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.

    Go 10.1k 497

  2. hub hub Public

    Main repository for crowdsec scenarios/parsers

    Python 188 167

  3. cs-firewall-bouncer cs-firewall-bouncer Public

    Crowdsec bouncer written in golang for firewalls

    Go 131 45

Repositories

Showing 10 of 110 repositories
  • php-remediation-engine Public

    The official PHP remediation engine for CrowdSec

    crowdsecurity/php-remediation-engine’s past year of commit activity
    PHP 2 MIT 1 0 0 Updated Apr 11, 2025
  • hub Public

    Main repository for crowdsec scenarios/parsers

    crowdsecurity/hub’s past year of commit activity
    Python 188 MIT 167 88 (3 issues need help) 46 Updated Apr 10, 2025
  • crowdsec Public

    CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.

    crowdsecurity/crowdsec’s past year of commit activity
    Go 10,088 MIT 497 176 (1 issue needs help) 38 Updated Apr 10, 2025
  • helm-charts Public

    CrowdSec community kubernetes helm charts

    crowdsecurity/helm-charts’s past year of commit activity
    Shell 26 MIT 38 12 (1 issue needs help) 6 Updated Apr 10, 2025
  • cs-firewall-bouncer Public

    Crowdsec bouncer written in golang for firewalls

    crowdsecurity/cs-firewall-bouncer’s past year of commit activity
    Go 131 MIT 45 27 (1 issue needs help) 3 Updated Apr 10, 2025
  • crowdsec-docs Public

    CrowdSec Documentation: Comprehensive guides, tutorials, and references for installing, configuring, and using CrowdSec, an open-source cybersecurity platform. Contributions welcome!

    crowdsecurity/crowdsec-docs’s past year of commit activity
    MDX 30 81 44 8 Updated Apr 9, 2025
  • packaging-freebsd Public
    crowdsecurity/packaging-freebsd’s past year of commit activity
    Shell 0 0 0 0 Updated Apr 9, 2025
  • cs-cloudflare-worker-bouncer Public

    A CrowdSec Bouncer that syncs the decisions made by CrowdSec with CloudFlare's firewall using cloudflare workers. Manages multi user, multi account, multi zone setup. Supports IP, Country and AS scoped decisions.

    crowdsecurity/cs-cloudflare-worker-bouncer’s past year of commit activity
    Go 8 MIT 6 1 3 Updated Apr 9, 2025
  • cs-nginx-bouncer Public

    CrowdSec bouncer for Nginx

    crowdsecurity/cs-nginx-bouncer’s past year of commit activity
    Shell 52 MIT 10 12 0 Updated Apr 9, 2025
  • cs-blocklist-mirror Public
    crowdsecurity/cs-blocklist-mirror’s past year of commit activity
    Go 20 MIT 8 0 1 Updated Apr 8, 2025
View all repositories

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