CVE-2026-33017
악용 확인 Langflow Code Injection Vulnerability
악용 여부
악용 확인
심각도 (발행처 발표값)
심각9.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
악용 확률 (EPSS)
96.2%
한국어 공식 권고
CISA 원문
Langflow contains a code injection vulnerability that could allow building public flows without requiring authentication.— CISA KEV · shortDescription 원문
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.— CISA KEV · requiredAction 원문
취약점 설명 (NVD 원문)
Langflow is a tool for building and deploying AI-powered agents and workflows. In versions prior to 1.9.0, the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint allows building public flows without requiring authentication. When the optional data parameter is supplied, the endpoint uses attacker-controlled flow data (containing arbitrary Python code in node definitions) instead of the stored flow data from the database. This code is passed to exec() with zero sandboxing, resulting in unauthenticated remote code execution. This is distinct from CVE-2025-3248, which fixed /api/v1/validate/code by adding authentication. The build_public_tmp endpoint is designed to be unauthenticated (for public flows) but incorrectly accepts attacker-supplied flow data containing arbitrary executable code. This issue has been fixed in version 1.9.0.
CWE-94 CWE-95 CWE-306
악용 확률 변화
| 기준일 | 확률 | 백분위 |
|---|---|---|
| 2026-09-07 | 96.18% | 99.9% |
| 2026-09-06 | 96.18% | 99.9% |
| 2026-09-05 | 96.18% | 99.9% |
| 2026-09-04 | 96.18% | 99.9% |