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critical·Product Based Web Vulnerabilities·Updated Aug 19, 2026

Crawl4AI < 0.8.7 - Hardcoded JWT Signing Key Authentication Bypass

Est. Time~10 seconds
Scan TypeGroup Scan
Targetsdomain, subdomain, ipv4
CostFree
3.2k
Times Used
continuous scan runs
2
Continuously Checked
assets under CS
0
Vulnerabilities Found
confirmed findings
References
9.3
CVSScritical
Exploitable remotely over the internet · no authentication required.
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.

Attack Vector
Network
Privileges Req.
None
User Interaction
None
Affected
Crawl4AIby Crawl4AI
AFFECTED< 0.8.7SAFE ✓≥ 0.8.7
Updated Sep 18, 2026View on NVD →

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Crawl4AI < 0.8.7 - Hardcoded JWT Signing Key Authentication Bypass CVE-2026-56265 Scanner | S4E