Unrated severityNVD Advisory· Published Jul 17, 2026· Updated Jul 23, 2026
Remote Code Execution via Code Validation Endpoint
CVE-2026-8481
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
1- Range: 1.0.0 - 1.10.0
Patches
Vulnerability mechanics
References
1- www.ibm.com/support/pages/node/7278923mitrevendor-advisorypatch
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