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Critical · 9.8 Known exploited · Ransomware Scanner template Public exploit CVE-2025-3248 EUVD-2025-10011GHSA-c995-4fw3-j39mGHSA-rvqx-wpfh-mfx7PYSEC-2025-36PYSEC-2026-380

Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code

Published Apr 7, 2025 · Updated Nov 8, 2026 · Assigned by VulnCheck

Vendor: langflow-ai Product: langflow Package: langflow Package: langflow-base Ecosystem: PyPI

Description

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.

Affected products

VendorProductAffectedFixed
langflow-ai langflow < 1.3.0 1.3.0

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

Exploit-DB 2

GitHub 29 repositories · most starred shown

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI langflow < 1.3.0 1.3.0 GHSA-rvqx-wpfh-mfx7
PyPI langflow-base < 0.3.0 0.3.0 GHSA-rvqx-wpfh-mfx7

References