{
  "claim_outcome": "alternate_trigger_confirmed_not_bypass",
  "variant_confirmed": true,
  "bypass_confirmed": false,
  "claim_block_reason": "fixed_latest_blocks_variant_not_bypass",
  "repro_result": "confirmed_on_vulnerable_blocked_on_fixed_latest",
  "validated_surface": "component_harness",
  "evidence_scope": "component_harness",
  "claimed_impact_class": "privilege_escalation_via_ssrf",
  "observed_impact_class": "ssrf_internal_resource_disclosure",
  "exploitability_confidence": "high_on_vulnerable_low_on_fixed_latest",
  "attacker_controlled_input": "URLComponent urls field set to a public postman-echo redirector URL that redirects to http://127.0.0.1:9998/marker",
  "trigger_path": "lfx.components.data_source.url.URLComponent.fetch_url_contents -> RecursiveUrlLoader.load -> requests.get follows public-to-loopback redirect without per-hop Langflow SSRF validation in lfx 0.4.6",
  "end_to_end_target_reached": true,
  "fixed_target_reached": false,
  "sanitizer_used": false,
  "crash_observed": false,
  "read_write_primitive_observed": false,
  "exploit_chain_demonstrated": false,
  "blocking_mitigation": "Repository HEAD URLComponent includes _fetch_with_revalidated_redirects and blocks the redirect to 127.0.0.1; URLComponent redirect fix commit 9a868386f2e35ad78041867b22e161665408a8d2 is present in latest tested source.",
  "inferred": false,
  "tested_versions": {
    "submitted_vulnerable": {
      "version": "langflow 1.9.3 / lfx 0.4.6",
      "commit_sha": "322e4908b931a3efe2d65c6a7ad5ec373c5a5e1d",
      "variant_reached_internal": true
    },
    "fixed_latest": {
      "ref": "repository HEAD / origin/main",
      "commit_sha": "315cc41b43c446bfb0e63d420ca55021f6f8987e",
      "variant_reached_internal": false
    }
  },
  "evidence": {
    "repro_log": "bundle/logs/vuln_variant/reproduction_steps.log",
    "vulnerable_result": "bundle/logs/vuln_variant/url_component_vulnerable.json",
    "fixed_latest_result": "bundle/logs/vuln_variant/url_component_fixed_latest.json",
    "runtime_manifest": "bundle/vuln_variant/runtime_manifest.json"
  }
}