{"cve":"CVE-2026-56266","nvd":{"published":"2026-06-22T22:16:50.937","modified":"2026-10-25T23:10:00.167","status":"Analyzed","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","score":9.2},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":8.6},"cwes":["CWE-918"],"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-direct-crawl-endpoints"],"products":["kidocode:crawl4ai"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-56266","score":0.00476,"percentile":0.40858,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-365w-hqf6-vxfg","url":"https://osv.dev/vulnerability/GHSA-365w-hqf6-vxfg","summary":"Crawl4AI: Multiple Docker API Vulnerabilities - File Write, SSRF, Auth Bypass, XSS, JS Execution","modified":"2026-09-23T21:15:03.978902533Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.7"],"fixed":["0.8.7"]}]},{"id":"GHSA-8qrg-7j2f-rf2h","url":"https://osv.dev/vulnerability/GHSA-8qrg-7j2f-rf2h","summary":"Crawl4AI: authentication bypass vulnerability due to a hardcoded default JWT signing key in the Docker API server","modified":"2026-09-14T18:15:04.942340570Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.7"],"fixed":["0.8.7"]}]},{"id":"PYSEC-2026-229","url":"https://osv.dev/vulnerability/PYSEC-2026-229","summary":"","modified":"2026-07-23T15:11:34.813972531Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.7"],"fixed":["0.8.7"]}]},{"id":"PYSEC-2026-230","url":"https://osv.dev/vulnerability/PYSEC-2026-230","summary":"","modified":"2026-07-23T15:11:34.813972531Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.7"],"fixed":["0.8.7"]}]},{"id":"PYSEC-2026-239","url":"https://osv.dev/vulnerability/PYSEC-2026-239","summary":"","modified":"2026-07-23T15:11:34.813972531Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.7"],"fixed":["0.8.7"]}]},{"id":"PYSEC-2026-3443","url":"https://osv.dev/vulnerability/PYSEC-2026-3443","summary":"","modified":"2026-07-23T15:11:34.813972531Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.7"],"fixed":["0.8.7"]}]},{"id":"PYSEC-2026-3449","url":"https://osv.dev/vulnerability/PYSEC-2026-3449","summary":"","modified":"2026-07-23T15:11:34.813972531Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.7"],"fixed":["0.8.7"]}]},{"id":"PYSEC-2026-596","url":"https://osv.dev/vulnerability/PYSEC-2026-596","summary":"","modified":"2026-07-23T15:11:34.813972531Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.7"],"fixed":["0.8.7"]}]},{"id":"PYSEC-2026-798","url":"https://osv.dev/vulnerability/PYSEC-2026-798","summary":"","modified":"2026-07-23T15:11:34.813972531Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.7"],"fixed":["0.8.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}