Crawl4AI 0.7.0 before 0.9.4 SSRF via link_preview_config URL Seeder

{
  "id": "4aa0e8c557e73787e6aa533be8239e279a5c3f8ba49dfddf424047d97cb97f33",
  "url": "https://osv.dev/vulnerability/CVE-2026-109238",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Crawl4AI 0.7.0 before 0.9.4 SSRF via link_preview_config URL Seeder",
    "summary": "Crawl4AI 0.7.0 before 0.9.4 contains a server-side request forgery vulnerability that allows API clients to reach internal addresses by enabling link_preview_config on /crawl requests. Attackers can supply a controlled page with include_external and include_patterns set, causing AsyncUrlSeeder to fetch internal, private, and cloud-metadata links and return their parsed head data.",
    "evidence": "osv:CVE-2026-109238",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-109238",
      "aliases": [
        "CVE-2026-109238",
        "GHSA-wh5w-hmj3-vgg7"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/unclecode/crawl4ai",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7b9ba3015f3458e366dbb851a7e01c9ef8fbc6b4"
                },
                {
                  "fixed": "133e1d92e37885dfccc03ea2e3687d06c98b7ceb"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.7.0"
                      },
                      {
                        "fixed": "0.9.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.7.0"
                      },
                      {
                        "fixed": "0.9.4"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.9.0",
            "docker-rebuild-v0.9.0",
            "v0.8.9",
            "docker-rebuild-v0.8.9",
            "v0.8.8",
            "docker-rebuild-v0.8.8",
            "v0.8.7",
            "docker-rebuild-v0.8.7",
            "docker-rebuild-v0.8.6",
            "v0.8.6",
            "v0.7.4",
            "v0.7.3",
            "v0.7.2",
            "v0.7.1",
            "v0.7.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109238.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.904892143Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109238.json",
        "https://github.com/unclecode/crawl4ai/security/advisories/GHSA-wh5w-hmj3-vgg7",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-109238",
        "https://www.vulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.4-ssrf-via-link-preview-config-url-seeder"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109238.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-109238",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514266,
  "published_at": "2026-10-12T16:04:15.75+00:00"
}