Actively exploited vulnerability

CVE-2025-3248: Langflow Missing Authentication Vulnerability

Langflow contains a missing authentication vulnerability in the /api/v1/validate/code endpoint that allows a remote, unauthenticated attacker to execute arbitrary code via crafted HTTP requests.

CISA KEV source 5 May 2025 added 26 May 2025 remediation due

Langflow · Langflow

Known ransomware use: Known

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Trend Micro Research, News and Perspectives17 Jun 2025

Critical Langflow Vulnerability (CVE-2025-3248) Actively Exploited to Deliver Flodrix Botnet

This blog uncovers an active campaign exploiting CVE-2025-3248 in Langflow versions before 1.3.0 that deploys the Flodrix botnet, enabling threat actors to achieve full system compromise, initiate DDoS attacks, and potentially exfiltrate sensitive data.

CVE-2025-3248: Langflow Missing Authentication Vulnerability

Affected product

Required action

Related Yasna coverage

Critical Langflow Vulnerability (CVE-2025-3248) Actively Exploited to Deliver Flodrix Botnet