by Kastro
Paper/Archive/CVE-2026-56261

CVE-2026-56261

Crawl4AI Crawl4AI — Crawl4AI - Server-Side Request Forgery via Webhook URLs

EPSS 0.5%CVSS 9.2
critical.is priorityof 100
36
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 43.7.437 × 208.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
Crawl4AI< 0.8.70.8.7CNA

Scores by source

VulnCheck (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
VulnCheck (CNA)8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

advisorygithub.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfgrefgithub.com/unclecode/crawl4aiwriteupvulncheck.com/advisories/crawl4ai-server-side-request-forgery-via-webhook-urls