{
 "public_id": "AIR-2026-0121",
 "incident_id": "2026-05-langflow-shareable-playground-rce",
 "date_disclosed": "2026-05-27",
 "date_occurred": null,
 "title": "CVE-2026-48519: unauthenticated RCE in Langflow's Shareable Playgrounds endpoint",
 "class": "responsible_disclosure",
 "attack_surface": "agent_framework",
 "initial_vector": "unauthenticated_http_request_to_public_playground_endpoint",
 "agent_capability_abused": [
  "code_node_execution",
  "flow_graph_construction"
 ],
 "target_product": "Langflow",
 "target_vendor": "DataStax / Langflow",
 "autonomy_level": "semi_autonomous",
 "impact_realized": false,
 "impact_type": [
  "remote_code_execution"
 ],
 "blast_radius": "any Langflow <= 1.9.1 instance with a shareable playground link exposed",
 "cve": [
  "CVE-2026-48519"
 ],
 "taxonomy": {
  "owasp_asi": [
   "ASI05"
  ],
  "mitre_atlas": [],
  "labels": [
   "unauthenticated_rce",
   "code_injection",
   "agent_builder",
   "public_endpoint"
  ]
 },
 "defense_present": "none on the /api/v1/build_public_tmp endpoint",
 "defense_bypassed": true,
 "fix_shipped": "Langflow 1.9.2",
 "primary_sources": [
  "https://github.com/advisories/GHSA-v5ff-9q35-q26f"
 ],
 "verified_quote": "enables the execution of workflows by unauthenticated users, by accessing a link.",
 "confidence": "high",
 "notes": "GHSA-v5ff-9q35-q26f, CVSS 9.6 Critical. Arbitrary Python is injected via data.nodes[X].data.node.template.code.value. Same class as the earlier Langflow CVE-2025-3248 unauthenticated RCE, which reached CISA KEV and was used by the Flodrix botnet - that earlier event is a separate disclosure and is NOT covered by this record (see gaps in report). A companion advisory GHSA-rcjh-r59h-gq37 / CVE-2026-48520 covers unauthenticated arbitrary file read on the same feature.",
 "risk_category": "security_fraud",
 "risk_secondary": [],
 "risk_subcategory": "Remote Code Execution & Sandbox Escape",
 "risk_sub_secondary": [],
 "ai_entity": "generative",
 "agency": "ai_as_target",
 "agency_debatable": false,
 "agency_reason": "unauthenticated RCE on a public Langflow endpoint",
 "vector_family": "conventional_vulnerability",
 "vector_detail": "unauthenticated_http_request_to_public_playground_endpoint",
 "guardrail_kind": [
  "none"
 ],
 "guardrail_outcome": "not_applicable",
 "xrefs": {
  "aiid": [],
  "atlas": [],
  "cve": [
   "CVE-2026-48519"
  ],
  "ghsa": []
 },
 "primary_asi": "ASI05",
 "agent_framework": "langflow",
 "model_provider": "unknown",
 "model_name": "",
 "detection_mechanism": "unknown",
 "tool_access": "unknown",
 "financial_loss_band": "unknown",
 "eai_category": "privilege_escalation",
 "eai_domain": "access_control_and_permissions",
 "eai_secondary": [],
 "eai_reason": "subcategory: Remote Code Execution & Sandbox Escape",
 "asi_curated": [],
 "asi_scope": "in_scope",
 "asi_provenance": "rule",
 "asi_reason": "ASI05 (impact=code_exec)",
 "submitted_by": "EAI Internal"
}