What’s Vulnerable › Vulnerabilities

CVE-2026-56261: Crawl4AI - Server-Side Request Forgery via Webhook URLs

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-10 · updated 2026-10-25
• Weakness: CWE-918

Description

Crawl4AI before 0.8.7 contains a server-side request forgery (SSRF) vulnerability in the Docker API server's /crawl/job and /llm/job endpoints, which accept webhook URLs without destination validation. An attacker can supply webhook URLs pointing to private or internal IP ranges, Docker networks, or cloud metadata endpoints (e.g. 169.254.169.254), causing the server to make requests to internal services and potentially expose cloud metadata.

Affected products

• unclecode crawl4ai: before 0.8.7 — fixed in 0.8.7

How to fix

Upgrade to a fixed version: unclecode crawl4ai 0.8.7. Check the vendor advisory for mitigations.

References

• https://github.com/unclecode/crawl4ai
• https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg
• https://www.vulncheck.com/advisories/crawl4ai-server-side-request-forgery-via-webhook-urls

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