CVE-2025-34291
Langflow Origin Validation Error Vulnerability
- 대응 우선순위
- 최우선
- CVSS
- 9.4
- EPSS
- 78.9% 백분위 99.5% · 2026.06.27 기준
- CISA KEV
- 등록
- 조치 기한
- 2026.06.04
- 공개일
- 2025.12.06
CISA KEV에 등록된 실제 악용 확인 취약점
Langflow versions up to and including 1.6.9 contain a chained vulnerability that enables account takeover and remote code execution. An overly permissive CORS configuration (allow_origins='*' with allow_credentials=True) combined with a refresh token cookie configured as SameSite=None allows a malicious webpage to perform cross-origin requests that include credentials and successfully call the refresh endpoint. An attacker-controlled origin can therefore obtain fresh access_token / refresh_token pairs for a victim session. Obtained tokens permit access to authenticated endpoints — including...
공급사 Langflow
제품 Langflow
영향 버전 0, <= 1.6.9
수정 버전 공식 출처에서 확인 필요
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
조치 기한: 2026.06.04CVSS 벡터 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
CWE CWE-346
KEV 등록일 2026.05.21
랜섬웨어 캠페인 사용 미확인
CISA 비고 This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://github.com/langflow-ai/langflow ; https://github.com/langflow-ai/langflow/releases/tag/v1.9.3; https://github.com/langflow-ai/langflow/issues/11465#event-25774545848 ; https://nvd.nist.gov/vuln/detail/CVE-2025-34291
EPSS 데이터 기준일 2026.06.27