{"cve":"CVE-2026-53755","nvd":{"published":"2026-06-23T19:17:07.477","modified":"2026-10-25T23:10:00.167","status":"Analyzed","description":"Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.9, the Docker API server applied its SSRF destination check to the crawl target URL only, not to the proxy address. An unauthenticated request could supply a proxy pointing at an internal IP and route the browser through it, reaching internal services and cloud-metadata endpoints, while using a perfectly valid crawl URL. The Docker API is unauthenticated by default. /crawl, /crawl/stream, and /crawl/job accept a browser_config (and crawler_config). The following all feed Chromium's egress and were unchecked: browser_config.proxy_config.server, browser_config.proxy (deprecated field), crawler_config.proxy_config.server, and --proxy-server / --proxy-pac-url / --proxy-bypass-list / --host-resolver-rules flags in browser_config.extra_args. This vulnerability is fixed in 0.8.9.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-918"],"references":["https://github.com/unclecode/crawl4ai/security/advisories/GHSA-6qhc-x826-342c"],"products":["kidocode:crawl4ai"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-53755","score":0.01577,"percentile":0.75289,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-6qhc-x826-342c","url":"https://osv.dev/vulnerability/GHSA-6qhc-x826-342c","summary":"Crawl4AI: SSRF via proxy settings in the Docker server bypasses the crawl-URL SSRF check","modified":"2026-07-20T21:30:33.098890697Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.9"],"fixed":["0.8.9"]}]},{"id":"PYSEC-2026-588","url":"https://osv.dev/vulnerability/PYSEC-2026-588","summary":"","modified":"2026-06-30T23:45:06.039027554Z","packages":[{"ecosystem":"PyPI","name":"crawl4ai","purl":"pkg:pypi/crawl4ai","ranges":["<0.8.9"],"fixed":["0.8.9"]}]}],"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."]}