CVE-2024-47252 – Apache HTTP Server mod_ssl Untrusted Client Data Injection

The following table lists the changes that have been made to the
CVE-2024-47252 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jul. 10, 2025

    Action Type Old Value New Value
    Added Description Insufficient escaping of user-supplied data in mod_ssl in Apache HTTP Server 2.4.63 and earlier allows an untrusted SSL/TLS client to insert escape characters into log files in some configurations.

    In a logging configuration where CustomLog is used with “%{varname}x” or “%{varname}c” to log variables provided by mod_ssl such as SSL_TLS_SNI, no escaping is performed by either mod_log_config or mod_ssl and unsanitized data provided by the client may appear in log files.

    Added CWE CWE-150
    Added Reference https://httpd.apache.org/security/vulnerabilities_24.html
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