vulnerability
Apache HTTPD: CVE-2016-4975: Improper Neutralization of CRLF Sequences
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Aug 14, 2018 | Aug 15, 2018 | Apr 9, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Aug 14, 2018
Added
Aug 15, 2018
Modified
Apr 9, 2026
Description
Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value. Fixed in Apache HTTP Server 2.4.25 (Affected 2.4.1-2.4.23). Fixed in Apache HTTP Server 2.2.32 (Affected 2.2.0-2.2.31).
Solution
apache-httpd-upgrade-latest
References
Rapid7 Labs
2026 Global Threat Landscape Report
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