CrowdSec v1.8.0

Bot detection with CrowdSec WAF

This release brings a major change to the CrowdSec WAF: a bot detection feature.

If enabled, clients will be served a challenge + fingerprinting page before accessing the website. CrowdSec will evaluate the challenge and check the fingerprint against pre-configured rules to decide whether the client looks legitimate or not.

You can find more information about this new feature in the documentation.

Other notable changes include:

• A dedicated kubernetes datasource: crowdsec will fetch logs directly from the k8s apiserver
• New HTTP helpers for the expression language, to query external services from parsers and scenarios
• Performance improvements on the decisions stream endpoint in LAPI

Security Notice

This release fixes 2 denial of service vulnerabilities in the HTTP and k8s-audit datasources:

• HTTP acquisition datasource lacks a decompressed body cap and trusts Content-Length: GHSA-g2x2-jgfg-pg7g
• Unbounded request-body read in kubernetes-audit acquisition webhook: GHSA-rh69-4vqj-9gj8

New Features

• k8s log acquisition datasource (#4221) @sabban
• Waf challenge mode (#4268) @blotus

Improvements

• challenge: detect if cookies are disabled and display an explicit error message (#4628) @blotus
• db: add composite index for decision dedup (#4619) @blotus
• Improve pow solving : optimize & increase difficulty (#4617) @buixor
• Bot detection unify scores (#4608) @buixor
• Dedup code reject submission alert generation (#4606) @buixor
• make RejectSubmission generate an alert (#4602) @buixor
• waf challenge: add threshold support (#4593) @blotus
• revamp 'cscli console status' to be all-in-one (#4592) @buixor
• [bot-detection] Fix leak of background pre-warmer goroutine (#4589) @buixor
• waf: allow to configure auth timeout to LAPI (#4585) @blotus
• Add cs_machines_heartbeat_seconds metric (#4569) @kushiemoon-dev
• Cscli hub list improvements (#4567) @buixor
• expr: add HTTP helpers (#4533) @blotus

Bug Fixes

• leakybuckets: make alerts own their strings (#4643) @blotus
• alerts: create metas only if alert was not discarded (#4633) @blotus
• k8s-audit: add support for max body size (#4630) @blotus
• Usage metrics: set a maximum payload size (#4629) @blotus
• lapi: use decision id as cursor for delta pull (#4620) @blotus
• acquis(http): Set default max body size and enforce it as well for compressed streams (#4616) @blotus
• acquisition: fix transformation being ignored (#4609) @blotus
• fpscanner: add missing fields (#4604) @blotus
• docs: fix broken Vagrant include link in test README (#4594) @latent-9
• challenge: require SSE4.1 + WX memory (#4590) @blotus
• WAF: supress erroneous warnings/errors when loading config / no rule has matched (#4587) @blotus
• Bot Detection: keep the original URL in the generated alert (#4586) @buixor
• fix(docker): allow spaces in ENROLL_INSTANCE_NAME (#4582) @sahilnyk
• apiclient: return nil response if we couldnt connect to LAPI (#4573) @blotus
• cscli lapi register: no error if the credentials file does not exist (#4570) @lopster568
• fix(docker): avoid panic on colliding nested crowdsec labels (#4555) @arpitjain099
• fix(syslog): don't close the shared acquisition output channel (#4553) @alxrxs
• waf: track id/name pairs for all subrules (#4505) @blotus
• apiserver: prevent from fetching JWT token from query string (#4554) @blotus
• fix(leakybucket): emit overflow before pouring the next event (#4547) @blotus
• loki: prevent duplicate log ingestion and improve timestamp handling (#4498) @Anulo2
• db: use proper mutex when checking if flush can happen (#4528) @blotus
• db: do not flush alerts with active decisions (#4527) @blotus
• Fix Distinct() panic on []string and other non-[]any slices (#4543) @Synvoya
• fix(docker): bouncer name strips wrong field from Docker secrets path (#4490) @tejgokani

Chore / Deps

• build(deps): bump astral-sh/setup-uv from 8.3.2 to 10.0.1 (#4625) @dependabot[bot]
• build(deps): bump google.golang.org/protobuf from 1.36.12-0.20260120151049-f2248ac996af to 1.36.12 (#4627) @dependabot[bot]
• build(deps): bump the gomod group with 16 updates (#4626) @dependabot[bot]
• build(deps): bump the github-actions group with 3 updates (#4624) @dependabot[bot]
• add claude.md to unify contribs (#4618) @buixor
• build(deps): bump actions/setup-go from 6.5.0 to 7.0.0 (#4580) @dependabot[bot]
• build(deps): bump actions/setup-python from 6.3.0 to 7.0.0 (#4578) @dependabot[bot]
• build(deps): bump actions/setup-node from 6.4.0 to 7.0.0 (#4577) @dependabot[bot]
• build(deps): bump the github-actions group across 1 directory with 5 updates (#4576) @dependabot[bot]
• build(deps): bump the gomod group across 1 directory with 16 updates (#4612) @dependabot[bot]
• acquisition tests: do not rely on hardcoded timeout to finish tests (#4610) @blotus
• challenge: skip pre-warm in tests (#4611) @blotus
• challenge: update fpscanner to 1.0.8 (#4598) @blotus
• build(deps): bump the gomod group with 6 updates (#4588) @dependabot[bot]
• ci(bats): fix scenarios badge color variable name (#4551) @blotus
• ci(docker): inherit secrets so the docker environment secrets resolve (#4550) @blotus
• build: use version based on latest for dev builds (#4583) @blotus
• build(deps): bump the gomod group with 19 updates (#4581) @dependabot[bot]
• build(deps): bump github.com/quic-go/quic-go from 0.57.0 to 0.59.1 (#4499) @dependabot[bot]
• build(deps): bump cryptography from 46.0.6 to 48.0.1 in /build/docker/test (#4522) @dependabot[bot]
• build(deps-dev): bump ruff from 0.15.20 to 0.15.22 in /build/docker/test in the uv group across 1 directory (#4559) @dependabot[bot]
• WAF: update coraza (#4572) @blotus
• build(deps): bump the github-actions group across 1 directory with 3 updates (#4558) @dependabot[bot]
• build(deps): bump the gomod group across 1 directory with 21 updates (#4566) @dependabot[bot]
• bump fpscanner to v1.0.7 (#4557) @blotus
• update go-re2 to 1.11.0 (#4478) @blotus
• Unify sqlite build flag (#4525) @zc-devs
• fix TestCryptoObfuscationDefaultPoolSize (#4565) @buixor
• build(deps): bump the gomod group across 1 directory with 30 updates (#4542) @dependabot[bot]
• chore: delete publiccode.yml to comply with the process (#4552) @mazzma12
• build(deps): bump golang.org/x/crypto from 0.51.0 to 0.52.0 (#4549) @dependabot[bot]
• CI hardening (#4546) @blotus
• fix(docs): set pubblicode.yml to correct version (#4548) @mazzma12
• build(deps): bump cloudflare/wrangler-action from 3.15.0 to 4.0.0 (#4541) @dependabot[bot]
• build(deps): bump codecov/codecov-action from 6.0.0 to 7.0.0 (#4540) @dependabot[bot]
• build(deps-dev): bump the uv group in /build/docker/test with 2 updates (#4537) @dependabot[bot]
• build(deps): bump the github-actions group with 7 updates (#4538) @dependabot[bot]
• build(deps): bump actions/checkout from 6.0.2 to 7.0.0 (#4539) @dependabot[bot]
• build(deps): bump golang.org/x/net from 0.53.0 to 0.55.0 (#4544) @dependabot[bot]
• build(deps): bump the github-actions group across 1 directory with 11 updates (#4524) @dependabot[bot]
• build(deps): bump the uv group across 1 directory with 3 updates (#4519) @dependabot[bot]
• build(deps): bump alpine from 3.23 to 3.24 in /build/docker in the docker group across 1 directory (#4513) @dependabot[bot]

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Installation

Take a look at the installation instructions.