Common Weakness Enumeration

    CWE Definition / CWE-93

    CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')

    The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

    Published:19 Jul 2006
    Organization:MITRE
    Modified:11 Dec 2025

    Related Weakness

    CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

    CWE-117: Improper Output Neutralization for Logs