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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 10.3k 501

  2. hub hub Public

    Main repository for crowdsec scenarios/parsers

    Python 192 170

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

    Crowdsec bouncer written in golang for firewalls

    Go 131 45

Repositories

Showing 10 of 114 repositories
  • hub Public

    Main repository for crowdsec scenarios/parsers

    crowdsecurity/hub’s past year of commit activity
    Python 192 MIT 170 88 (3 issues need help) 41 Updated May 10, 2025
  • sec-lists Public

    Repository to track keywords & patterns lists used by crowdsec parsers and scenarios

    crowdsecurity/sec-lists’s past year of commit activity
    12 MIT 21 0 4 Updated May 9, 2025
  • hub-dev Public Forked from crowdsecurity/hub

    Hub Dev

    crowdsecurity/hub-dev’s past year of commit activity
    Python 0 MIT 172 0 7 Updated May 9, 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 10,264 MIT 501 160 (1 issue needs help) 32 Updated May 9, 2025
  • plugins Public Forked from opnsense/plugins

    OPNsense plugin collection

    crowdsecurity/plugins’s past year of commit activity
    PHP 1 BSD-2-Clause 702 0 0 Updated May 9, 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 33 83 46 9 Updated May 9, 2025
  • cs-wordpress-bouncer Public

    CrowdSec is an open-source cyber security tool. This plugin blocks detected attackers or display them a captcha.

    crowdsecurity/cs-wordpress-bouncer’s past year of commit activity
    PHP 42 MIT 6 1 0 Updated May 9, 2025
  • cs-magento-bouncer Public

    CrowdSec is an open-source cyber security tool. This module blocks detected attackers or display them a captcha to check they are not bots.

    crowdsecurity/cs-magento-bouncer’s past year of commit activity
    PHP 6 MIT 3 1 0 Updated May 9, 2025
  • helm-charts Public

    CrowdSec community kubernetes helm charts

    crowdsecurity/helm-charts’s past year of commit activity
    Shell 26 MIT 39 12 (1 issue needs help) 6 Updated May 7, 2025
  • packaging-freebsd Public
    crowdsecurity/packaging-freebsd’s past year of commit activity
    Shell 0 0 0 0 Updated May 5, 2025
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