CVE-2025-3248
CISA KEVAs of 2025-11-06, CVE-2025-3248 is a CVSS 9.8 (CRITICAL-severity) vulnerability. CISA KEV-listed (known exploited). EPSS exploitation probability 92.1%. Threadlinqs Intelligence tracks 7 threats exploiting it.
Last updated: 2025-11-06
Langflow versions prior to 1.3.0 are susceptible to code injection in the /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary code.
CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
CWE-306, CWE-94
Exploitation status
CISA KEV-listed (known exploited)
Threats tracking this CVE
- Langflow CVE-2025-3248 Unauthenticated RCE Exploited to Build Custom Gafgyt/BASHLITE DDoS Botnet — CRITICAL
- CVE-2025-3248 & CVE-2026-5027: Langflow RCE and Path Traversal Chained for Flodrix Botnet Deployment — CRITICAL
- JADEPUFFER: AI Agent Exploits Langflow RCE (CVE-2025-3248) to Automate Database Ransomware/Extortion Attack — CRITICAL
- JADEPUFFER Agentic Ransomware: Autonomous LLM Agent Exploits Langflow (CVE-2025-3248) and Nacos (CVE-2021-29441) for End-to-End Database Extortion — CRITICAL
- JADEPUFFER Agentic Ransomware Exploits Langflow CVE-2025-3248 and Nacos CVE-2021-29441 via Base64-Encoded Python Payloads — CRITICAL
- JADEPUFFER: First End-to-End Agentic Ransomware Attack Exploiting Langflow (CVE-2025-3248) and Nacos (CVE-2021-29441) — CRITICAL
- JADEPUFFER: Agentic (LLM-Driven) Ransomware Automating Database Extortion via Langflow RCE (CVE-2025-3248) and Nacos Auth Bypass (CVE-2021-29441) — CRITICAL
References
- https://github.com/langflow-ai/langflow/pull/6911
- https://github.com/langflow-ai/langflow/releases/tag/1.3.0
- https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/
- https://www.vulncheck.com/advisories/langflow-unauthenticated-rce
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248
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Enriched from CVE.org, NVD (this product uses the NVD API but is not endorsed or certified by the NVD), FIRST EPSS, CISA KEV, and GitHub Security Advisories.