CVE-2026-56266
Crawl4AI before 0.8.7 contains a server-side request forgery vulnerability in the /crawl, /crawl/stream, /md, and /llm endpoints that fetch arbitrary user-supplied URLs without validation. Unauthenticated attackers can bypass the internal-address blocklist using IPv6-mapped IPv4 addresses to reach internal services and cloud metadata endpoints.
Published:Jun 22, 2026
Last Modified:Jul 14, 2026
EPS:Jun 22, 2026
EPSS Score:0.00276
CVSS Score:8.6
Affected Products
Vendor
Product
Action
Vendor
Crawl4ai
Product
Crawl4ai
Crawl4ai
Crawl4ai
Vendor
Kidocode
Product
Crawl4ai
Kidocode
Crawl4ai
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
