Description
IBM Langflow OSS 1.0.0 through 1.10.0 contain a critical remote code execution vulnerability in the code validation API endpoint. The POST /api/v1/validate/code endpoint accepts user-supplied Python code and executes it directly using Python's built-in exec() function without sandboxing, input validation, or privilege restrictions, enabling any authenticated user to execute arbitrary system commands with the full privileges of the Langflow server process.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| IBM | Langflow OSS | 1.0.0 – ≤ 1.10.0 | — |
Advisories 2
- WID-SEC-2026-2410 IBM Langflow Desktop OSS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 4, 2026
- NCSC-2026-0251 Kwetsbaarheden verholpen in IBM Langflow OSS NCSC-NL (Netherlands) · Jul 21, 2026
References
- https://www.ibm.com/support/pages/node/7278923 vendor-advisory patch