Description
Crawl4AI before 0.8.7 contains an authentication bypass vulnerability due to a hardcoded default JWT signing key in the Docker API server. Attackers who know the default key can forge valid authentication tokens for any user, bypassing authentication and gaining full access to protected functionality.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Crawl4AI | Crawl4AI | < 0.8.7 | 0.8.7 |
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Crawl4AI < 0.8.7 - Hardcoded JWT Signing Key Authentication Bypass http/cves/2026/CVE-2026-56265.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
References
- GitHub Security Advisory (GHSA-365w-hqf6-vxfg) vendor-advisory
- https://github.com/unclecode/crawl4ai product
- VulnCheck Advisory: Crawl4AI - Authentication Bypass via Hardcoded JWT Signing Key third-party-advisory