Langflow /api/v1/validate/code RCE Exploitation (CVE-2025-3248)

Ibrahim Saud@tektrix

•updated Sep 17, 2026•0•0•3

Detects attempts to exploit the Langflow 'validate/code' endpoint, which is associated with CVE-2025-3248. The rule monitors HTTP POST requests to this endpoint for specific character patterns within the request body, indicative of malicious payloads attempting to achieve code execution.