Common Weakness Enumeration
CWE Definition / CWE-1427
CWE-1427: Improper Neutralization of Input Used for LLM Prompting
The product uses externally-provided data to build prompts provided to large language models (LLMs), but the way these prompts are constructed causes the LLM to fail to distinguish between user-supplied inputs and developer provided system directives.
Published:21 Jun 2024
Organization:MITRE
Modified:30 Apr 2026
Related Weakness
CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
